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authorKartik K. Agaram <vc@akkartik.com>2016-10-06 23:51:55 -0700
committerKartik K. Agaram <vc@akkartik.com>2016-10-06 23:51:55 -0700
commit4a70fb39cc6a0f2ebe34e9b58b873e13d8221015 (patch)
tree0a9ea58f4d0f3786b1023ae0d347361976a694fa /html
parenteeed3845cd504028779c333665e0b9fad2070357 (diff)
downloadmu-4a70fb39cc6a0f2ebe34e9b58b873e13d8221015.tar.gz
3457
Switch around some unicode characters in the edit/ app so that it
renders more cleanly in html (with monospace fonts).
Diffstat (limited to 'html')
-rw-r--r--html/edit/002-typing.mu.html40
-rw-r--r--html/edit/003-shortcuts.mu.html92
-rw-r--r--html/edit/004-programming-environment.mu.html54
-rw-r--r--html/edit/005-sandbox.mu.html342
-rw-r--r--html/edit/006-sandbox-copy.mu.html126
-rw-r--r--html/edit/007-sandbox-delete.mu.html152
-rw-r--r--html/edit/008-sandbox-edit.mu.html182
-rw-r--r--html/edit/009-sandbox-test.mu.html32
-rw-r--r--html/edit/010-sandbox-trace.mu.html96
-rw-r--r--html/edit/011-errors.mu.html264
-rw-r--r--html/edit/012-editor-undo.mu.html122
11 files changed, 751 insertions, 751 deletions
diff --git a/html/edit/002-typing.mu.html b/html/edit/002-typing.mu.html
index c2c0efb5..8dd0fd48 100644
--- a/html/edit/002-typing.mu.html
+++ b/html/edit/002-typing.mu.html
@@ -310,7 +310,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   row:num, column:num<span class="Special"> &lt;- </span>render screen, editor
   clear-line-until screen, right
   row<span class="Special"> &lt;- </span>add row, <span class="Constant">1</span>
-  draw-horizontal screen, row, left, right, <span class="Constant">9480/horizontal-dotted</span>
+  draw-horizontal screen, row, left, right, <span class="Constant">9548/horizontal-dashed</span>
   row<span class="Special"> &lt;- </span>add row, <span class="Constant">1</span>
   clear-screen-from screen, row, left, left, right
 ]
@@ -327,7 +327,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -349,7 +349,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   memory-should-contain [
@@ -442,7 +442,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
-   <span class="Constant"> .┈┈┈┈┈     .</span>
+   <span class="Constant"> .╌╌╌╌╌     .</span>
    <span class="Constant"> .          .</span>
   ]
   memory-should-contain [
@@ -489,7 +489,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
-   <span class="Constant"> .┈┈┈┈┈     .</span>
+   <span class="Constant"> .╌╌╌╌╌     .</span>
    <span class="Constant"> .          .</span>
   ]
   check-trace-count-for-label <span class="Constant">3</span>, <span class="Constant">[print-character]</span>
@@ -513,7 +513,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .0adbc     .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   check-trace-count-for-label <span class="Constant">7</span>, <span class="Constant">[print-character]</span>  <span class="Comment"># 4 for first letter, 3 for second</span>
@@ -535,7 +535,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abcd      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   check-trace-count-for-label <span class="Constant">1</span>, <span class="Constant">[print-character]</span>
@@ -560,7 +560,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abce      .</span>
    <span class="Constant"> .d         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   check-trace-count-for-label <span class="Constant">1</span>, <span class="Constant">[print-character]</span>
@@ -582,7 +582,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abcd      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   check-trace-count-for-label <span class="Constant">1</span>, <span class="Constant">[print-character]</span>
@@ -607,7 +607,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .de        .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   check-trace-count-for-label <span class="Constant">1</span>, <span class="Constant">[print-character]</span>
@@ -632,7 +632,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .def       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   check-trace-count-for-label <span class="Constant">2</span>, <span class="Constant">[print-character]</span>
@@ -652,7 +652,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .01ab      .</span>
-   <span class="Constant"> .┈┈┈┈┈     .</span>
+   <span class="Constant"> .╌╌╌╌╌     .</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -675,7 +675,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .     .</span>
    <span class="Constant"> .eabc .</span>
-<span class="Constant">    .┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌.</span>
    <span class="Constant"> .     .</span>
    <span class="Constant"> .     .</span>
   ]
@@ -691,7 +691,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .     .</span>
 <span class="Constant">    .efab↩.</span>
    <span class="Constant"> .c    .</span>
-<span class="Constant">    .┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌.</span>
    <span class="Constant"> .     .</span>
   ]
 ]
@@ -797,7 +797,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abcf↩     .</span>
    <span class="Constant"> .de        .</span>
-   <span class="Constant"> .┈┈┈┈┈     .</span>
+   <span class="Constant"> .╌╌╌╌╌     .</span>
    <span class="Constant"> .          .</span>
   ]
   memory-should-contain [
@@ -831,7 +831,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .abcd↩     .</span>
    <span class="Constant"> .e         .</span>
    <span class="Constant"> .xyz       .</span>
-   <span class="Constant"> .┈┈┈┈┈     .</span>
+   <span class="Constant"> .╌╌╌╌╌     .</span>
   ]
 ]
 
@@ -852,7 +852,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .  abc0↩   .</span>
    <span class="Constant"> .  1de     .</span>
-   <span class="Constant"> .  ┈┈┈┈┈   .</span>
+   <span class="Constant"> .  ╌╌╌╌╌   .</span>
    <span class="Constant"> .          .</span>
   ]
   memory-should-contain [
@@ -886,7 +886,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .0         .</span>
    <span class="Constant"> .1abc      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -992,7 +992,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> . 0        .</span>
    <span class="Constant"> . 1abc     .</span>
-   <span class="Constant"> . ┈┈┈┈┈┈┈┈┈.</span>
+   <span class="Constant"> . ╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1020,7 +1020,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abcd↩     .</span>
    <span class="Constant"> .e         .</span>
-   <span class="Constant"> .┈┈┈┈┈     .</span>
+   <span class="Constant"> .╌╌╌╌╌     .</span>
   ]
 ]
 
diff --git a/html/edit/003-shortcuts.mu.html b/html/edit/003-shortcuts.mu.html
index bac26d3c..e9ec2f4d 100644
--- a/html/edit/003-shortcuts.mu.html
+++ b/html/edit/003-shortcuts.mu.html
@@ -91,7 +91,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .bc        .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   memory-should-contain [
@@ -269,7 +269,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abcd      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   memory-should-contain [
@@ -300,7 +300,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc defgh↩.</span>
    <span class="Constant"> .i jkl     .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -316,7 +316,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc def↩  .</span>
    <span class="Constant"> . ghij     .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈  .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌  .</span>
   ]
 <span class="Constant">  $clear-trace</span>
   <span class="Comment"># position the cursor somewhere in the middle of the top screen line and hit backspace</span>
@@ -332,7 +332,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abcdef ↩  .</span>
    <span class="Constant"> .ghij      .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈  .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌  .</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -354,7 +354,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .bc        .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   check-trace-count-for-label <span class="Constant">3</span>, <span class="Constant">[print-character]</span>  <span class="Comment"># length of original line to overwrite</span>
@@ -368,7 +368,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .c         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   check-trace-count-for-label <span class="Constant">2</span>, <span class="Constant">[print-character]</span>  <span class="Comment"># new length to overwrite</span>
@@ -444,7 +444,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .a0bc      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   check-trace-count-for-label <span class="Constant">3</span>, <span class="Constant">[print-character]</span>  <span class="Comment"># 0 and following characters</span>
@@ -555,7 +555,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .0d        .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   check-trace-count-for-label <span class="Constant">2</span>, <span class="Constant">[print-character]</span>  <span class="Comment"># new length of second line</span>
@@ -582,7 +582,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> . abc      .</span>
    <span class="Constant"> . 0d       .</span>
-   <span class="Constant"> . ┈┈┈┈┈┈┈┈┈.</span>
+   <span class="Constant"> . ╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -606,7 +606,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abcd↩     .</span>
    <span class="Constant"> .ef        .</span>
-   <span class="Constant"> .┈┈┈┈┈     .</span>
+   <span class="Constant"> .╌╌╌╌╌     .</span>
    <span class="Constant"> .          .</span>
   ]
   memory-should-contain [
@@ -672,7 +672,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> . abcd↩    .</span>
    <span class="Constant"> . ef       .</span>
-   <span class="Constant"> . ┈┈┈┈┈    .</span>
+   <span class="Constant"> . ╌╌╌╌╌    .</span>
    <span class="Constant"> .          .</span>
   ]
   memory-should-contain [
@@ -704,7 +704,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .0d        .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   check-trace-count-for-label <span class="Constant">2</span>, <span class="Constant">[print-character]</span>
@@ -731,7 +731,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .a0bc      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   check-trace-count-for-label <span class="Constant">3</span>, <span class="Constant">[print-character]</span>
@@ -807,7 +807,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .def0      .</span>
    <span class="Constant"> .g         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
   check-trace-count-for-label <span class="Constant">1</span>, <span class="Constant">[print-character]</span>  <span class="Comment"># just the '0'</span>
 ]
@@ -836,7 +836,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .0abc      .</span>
    <span class="Constant"> .def       .</span>
    <span class="Constant"> .g         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
   check-trace-count-for-label <span class="Constant">4</span>, <span class="Constant">[print-character]</span>  <span class="Comment"># length of first line</span>
 ]
@@ -865,7 +865,7 @@ d]
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .0         .</span>
    <span class="Constant"> .d         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
   check-trace-count-for-label <span class="Constant">1</span>, <span class="Constant">[print-character]</span>  <span class="Comment"># just the '0'</span>
 ]
@@ -881,7 +881,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abcd↩     .</span>
    <span class="Constant"> .ef        .</span>
-   <span class="Constant"> .┈┈┈┈┈     .</span>
+   <span class="Constant"> .╌╌╌╌╌     .</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># position cursor right after empty line</span>
@@ -915,7 +915,7 @@ d]
    <span class="Constant"> .abcd↩     .</span>
    <span class="Constant"> .ef        .</span>
    <span class="Constant"> .g         .</span>
-   <span class="Constant"> .┈┈┈┈┈     .</span>
+   <span class="Constant"> .╌╌╌╌╌     .</span>
   ]
   <span class="Comment"># position cursor right after empty line</span>
   assume-console [
@@ -947,7 +947,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abcd      .</span>
    <span class="Constant"> .e         .</span>
-   <span class="Constant"> .┈┈┈┈┈     .</span>
+   <span class="Constant"> .╌╌╌╌╌     .</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># position cursor right after empty line</span>
@@ -1003,7 +1003,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .a0bc      .</span>
    <span class="Constant"> .def       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1120,7 +1120,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .ab0       .</span>
    <span class="Constant"> .def       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1157,7 +1157,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .0         .</span>
    <span class="Constant"> .def       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1198,7 +1198,7 @@ d]
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .0def      .</span>
    <span class="Constant"> .ghi       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
 ]
 
@@ -1237,7 +1237,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .0def      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1342,7 +1342,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .de0       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1545,7 +1545,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .123z      .</span>
    <span class="Constant"> .456       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   check-trace-count-for-label <span class="Constant">1</span>, <span class="Constant">[print-character]</span>
@@ -1696,7 +1696,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .123       .</span>
    <span class="Constant"> .6         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1760,7 +1760,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .3         .</span>
    <span class="Constant"> .456       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1784,7 +1784,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .          .</span>
    <span class="Constant"> .456       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1808,7 +1808,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .123       .</span>
    <span class="Constant"> .          .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1834,7 +1834,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .1         .</span>
    <span class="Constant"> .456       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1890,7 +1890,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .123       .</span>
    <span class="Constant"> .4         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1914,7 +1914,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .12        .</span>
    <span class="Constant"> .456       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1938,7 +1938,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .123       .</span>
    <span class="Constant"> .456       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1962,7 +1962,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .123       .</span>
    <span class="Constant"> .45        .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1986,7 +1986,7 @@ d]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .123       .</span>
    <span class="Constant"> .456       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -2306,7 +2306,7 @@ d]
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .de0       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># try to move down again</span>
@@ -2335,7 +2335,7 @@ d]
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .de01      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -2529,7 +2529,7 @@ d]
    <span class="Constant"> .k         .</span>
    <span class="Constant"> .l         .</span>
    <span class="Constant"> .m         .</span>
-   <span class="Constant"> .┈┈┈┈┈     .</span>
+   <span class="Constant"> .╌╌╌╌╌     .</span>
   ]
   <span class="Comment"># move up one line</span>
   assume-console [
@@ -2660,7 +2660,7 @@ e]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .d         .</span>
    <span class="Constant"> .e         .</span>
-   <span class="Constant"> .┈┈┈┈┈┈    .</span>
+   <span class="Constant"> .╌╌╌╌╌╌    .</span>
   ]
   assume-console [
     press page-up
@@ -2799,7 +2799,7 @@ e]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .c         .</span>
    <span class="Constant"> .d         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
 ]
 
@@ -2872,7 +2872,7 @@ e]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .a         .</span>
    <span class="Constant"> .b         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
   <span class="Comment"># scroll down</span>
   assume-console [
@@ -2886,7 +2886,7 @@ e]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .a         .</span>
    <span class="Constant"> .b         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
 ]
 
@@ -2919,7 +2919,7 @@ e]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .cde↩      .</span>
    <span class="Constant"> .fgh       .</span>
-   <span class="Constant"> .┈┈┈┈      .</span>
+   <span class="Constant"> .╌╌╌╌      .</span>
   ]
 ]
 
@@ -2983,7 +2983,7 @@ e]
    <span class="Constant"> .          .</span>
    <span class="Constant"> .c         .</span>
    <span class="Constant"> .d         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
   <span class="Comment"># scroll back up</span>
   assume-console [
diff --git a/html/edit/004-programming-environment.mu.html b/html/edit/004-programming-environment.mu.html
index c6bcff5a..72fb4000 100644
--- a/html/edit/004-programming-environment.mu.html
+++ b/html/edit/004-programming-environment.mu.html
@@ -71,7 +71,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   print screen, <span class="Constant">[ run (F4) ]</span>, <span class="Constant">255/white</span>, <span class="Constant">161/reddish</span>
   <span class="Comment"># dotted line down the middle</span>
   divider:num, _<span class="Special"> &lt;- </span>divide-with-remainder width, <span class="Constant">2</span>
-  draw-vertical screen, divider, <span class="Constant">1/top</span>, height, <span class="Constant">9482/vertical-dotted</span>
+  draw-vertical screen, divider, <span class="Constant">1/top</span>, height, <span class="Constant">9550/vertical-dashed</span>
   <span class="Comment"># recipe editor on the left</span>
   recipes:&amp;:editor<span class="Special"> &lt;- </span>new-editor initial-recipe-contents, screen, <span class="Constant">0/left</span>, divider/right
   <span class="Comment"># sandbox editor on the right</span>
@@ -375,9 +375,9 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .           run (F4)           .  # this line has a different background, but we don't test that yet</span>
-   <span class="Constant"> .a0bc           ┊d1ef          .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .               ┊              .</span>
+   <span class="Constant"> .a0bc           ╎d1ef          .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎──────────────.</span>
+   <span class="Constant"> .               ╎              .</span>
   ]
   memory-should-contain [
     <span class="Constant">5</span><span class="Special"> &lt;- </span><span class="Constant">2</span>  <span class="Comment"># cursor column of recipe editor</span>
@@ -390,9 +390,9 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .           run (F4)           .</span>
-   <span class="Constant"> .a0bc           ┊d1␣f          .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .               ┊              .</span>
+   <span class="Constant"> .a0bc           ╎d1␣f          .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎──────────────.</span>
+   <span class="Constant"> .               ╎              .</span>
   ]
 ]
 
@@ -407,10 +407,10 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># divider isn't messed up</span>
   screen-should-contain [
    <span class="Constant"> .                                         run (F4)           .</span>
-   <span class="Constant"> .abc                           ┊def                          .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                              ┊                             .</span>
-   <span class="Constant"> .                              ┊                             .</span>
+   <span class="Constant"> .abc                           ╎def                          .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────.</span>
+   <span class="Constant"> .                              ╎                             .</span>
+   <span class="Constant"> .                              ╎                             .</span>
   ]
 ]
 
@@ -430,9 +430,9 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># is cursor at the right place?</span>
   screen-should-contain [
    <span class="Constant"> .           run (F4)           .</span>
-   <span class="Constant"> .␣bc            ┊def           .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .               ┊              .</span>
+   <span class="Constant"> .␣bc            ╎def           .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎──────────────.</span>
+   <span class="Constant"> .               ╎              .</span>
   ]
   <span class="Comment"># now try typing a letter</span>
   assume-console [
@@ -446,9 +446,9 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># cursor should still be right</span>
   screen-should-contain [
    <span class="Constant"> .           run (F4)           .</span>
-   <span class="Constant"> .z␣bc           ┊def           .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .               ┊              .</span>
+   <span class="Constant"> .z␣bc           ╎def           .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎──────────────.</span>
+   <span class="Constant"> .               ╎              .</span>
   ]
 ]
 
@@ -463,10 +463,10 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   render-all screen, env, render
   screen-should-contain [
    <span class="Constant"> .           run (F4)           .</span>
-   <span class="Constant"> .               ┊abc           .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊def           .</span>
-   <span class="Constant"> .               ┊━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .               ┊              .</span>
+   <span class="Constant"> .               ╎abc           .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎def           .</span>
+   <span class="Constant"> .               ╎──────────────.</span>
+   <span class="Constant"> .               ╎              .</span>
   ]
   <span class="Comment"># position cursor at start of second line and hit backspace</span>
   assume-console [
@@ -481,9 +481,9 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># cursor moves to end of old line</span>
   screen-should-contain [
    <span class="Constant"> .           run (F4)           .</span>
-   <span class="Constant"> .               ┊abc␣ef        .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .               ┊              .</span>
+   <span class="Constant"> .               ╎abc␣ef        .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎──────────────.</span>
+   <span class="Constant"> .               ╎              .</span>
   ]
 ]
 
@@ -505,7 +505,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   trace <span class="Constant">11</span>, <span class="Constant">[app]</span>, <span class="Constant">[render divider]</span>
   divider:num, _<span class="Special"> &lt;- </span>divide-with-remainder width, <span class="Constant">2</span>
   height:num<span class="Special"> &lt;- </span>screen-height screen
-  draw-vertical screen, divider, <span class="Constant">1/top</span>, height, <span class="Constant">9482/vertical-dotted</span>
+  draw-vertical screen, divider, <span class="Constant">1/top</span>, height, <span class="Constant">9550/vertical-dashed</span>
   <span class="Comment">#</span>
   screen<span class="Special"> &lt;- </span>render-recipes screen, env, render-editor
   screen<span class="Special"> &lt;- </span>render-sandbox-side screen, env, render-editor
@@ -532,7 +532,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   row<span class="Special"> &lt;- </span>add row, <span class="Constant">1</span>
 <span class="Constant">  &lt;render-recipe-components-end&gt;</span>
   <span class="Comment"># draw dotted line after recipes</span>
-  draw-horizontal screen, row, left, right, <span class="Constant">9480/horizontal-dotted</span>
+  draw-horizontal screen, row, left, right, <span class="Constant">9548/horizontal-dashed</span>
   row<span class="Special"> &lt;- </span>add row, <span class="Constant">1</span>
   clear-screen-from screen, row, left, left, right
 ]
@@ -548,7 +548,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   clear-line-until screen, right
   row<span class="Special"> &lt;- </span>add row, <span class="Constant">1</span>
   <span class="Comment"># draw solid line after code (you'll see why in later layers)</span>
-  draw-horizontal screen, row, left, right, <span class="Constant">9473/horizontal</span>
+  draw-horizontal screen, row, left, right
   row<span class="Special"> &lt;- </span>add row, <span class="Constant">1</span>
   clear-screen-from screen, row, left, left, right
 ]
diff --git a/html/edit/005-sandbox.mu.html b/html/edit/005-sandbox.mu.html
index 17da0bdd..a1a87d1c 100644
--- a/html/edit/005-sandbox.mu.html
+++ b/html/edit/005-sandbox.mu.html
@@ -93,14 +93,14 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># check that screen prints the results</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊divide-with-remainder 11, 3                      .</span>
-   <span class="Constant"> .                                                  ┊3                                                .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎divide-with-remainder 11, 3                      .</span>
+   <span class="Constant"> .                                                  ╎3                                                .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   screen-should-contain-in-color <span class="Constant">7/white</span>, [
    <span class="Constant"> .                                                                                                    .</span>
@@ -115,14 +115,14 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain-in-color <span class="Constant">245/grey</span>, [
    <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊3                                                .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎3                                                .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># sandbox menu in reverse video</span>
   screen-should-contain-in-color <span class="Constant">232/black</span>, [
@@ -143,18 +143,18 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># check that screen prints both sandboxes</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊1   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊divide-with-remainder 11, 3                      .</span>
-   <span class="Constant"> .                                                  ┊3                                                .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎divide-with-remainder 11, 3                      .</span>
+   <span class="Constant"> .                                                  ╎3                                                .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -286,7 +286,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
     row<span class="Special"> &lt;- </span>add row, <span class="Constant">1</span>
   <span class="Delimiter">}</span>
   <span class="Comment"># render sandboxes</span>
-  draw-horizontal screen, row, left, right, <span class="Constant">9473/horizontal-double</span>
+  draw-horizontal screen, row, left, right
   sandbox:&amp;:sandbox<span class="Special"> &lt;- </span>get *env, <span class="Constant">sandbox:offset</span>
   row, screen<span class="Special"> &lt;- </span>render-sandboxes screen, sandbox, left, right, row, render-from
   clear-rest-of-screen screen, row, left, right
@@ -332,7 +332,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
     at-bottom?:bool<span class="Special"> &lt;- </span>greater-or-equal row, screen-height
     <span class="muControl">return-if</span> at-bottom?
     <span class="Comment"># draw solid line after sandbox</span>
-    draw-horizontal screen, row, left, right, <span class="Constant">9473/horizontal-double</span>
+    draw-horizontal screen, row, left, right
   <span class="Delimiter">}</span>
   <span class="Comment"># if hidden, reset row attributes</span>
   <span class="Delimiter">{</span>
@@ -569,14 +569,14 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .local-scope                                       ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .z:num &lt;- add 2, 2                                 ┊foo                                              .</span>
-   <span class="Constant"> .reply z                                           ┊4                                                .</span>
-   <span class="Constant"> .]                                                 ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .local-scope                                       ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .z:num &lt;- add 2, 2                                 ╎foo                                              .</span>
+   <span class="Constant"> .reply z                                           ╎4                                                .</span>
+   <span class="Constant"> .]                                                 ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># make a change (incrementing one of the args to 'add'), then rerun</span>
   assume-console [
@@ -591,14 +591,14 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># check that screen updates the result on the right</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .local-scope                                       ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .z:num &lt;- add 2, 3                                 ┊foo                                              .</span>
-   <span class="Constant"> .reply z                                           ┊5                                                .</span>
-   <span class="Constant"> .]                                                 ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .local-scope                                       ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .z:num &lt;- add 2, 3                                 ╎foo                                              .</span>
+   <span class="Constant"> .reply z                                           ╎5                                                .</span>
+   <span class="Constant"> .]                                                 ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -619,18 +619,18 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># check that it prints a little toy screen</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊print-integer screen, 4                          .</span>
-   <span class="Constant"> .                                                  ┊screen:                                          .</span>
-   <span class="Constant"> .                                                  ┊  .4                             .               .</span>
-   <span class="Constant"> .                                                  ┊  .                              .               .</span>
-   <span class="Constant"> .                                                  ┊  .                              .               .</span>
-   <span class="Constant"> .                                                  ┊  .                              .               .</span>
-   <span class="Constant"> .                                                  ┊  .                              .               .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎print-integer screen, 4                          .</span>
+   <span class="Constant"> .                                                  ╎screen:                                          .</span>
+   <span class="Constant"> .                                                  ╎  .4                             .               .</span>
+   <span class="Constant"> .                                                  ╎  .                              .               .</span>
+   <span class="Constant"> .                                                  ╎  .                              .               .</span>
+   <span class="Constant"> .                                                  ╎  .                              .               .</span>
+   <span class="Constant"> .                                                  ╎  .                              .               .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -687,10 +687,10 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># no scroll</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -711,10 +711,10 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># cursor moves back to bottom</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .␣                                                 ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .␣                                                 ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -790,10 +790,10 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># no scroll, and cursor remains at top line</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -818,10 +818,10 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># no scroll on recipe side, cursor moves on sandbox side</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊ab                                               .</span>
-   <span class="Constant"> .                                                  ┊␣d                                               .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎ab                                               .</span>
+   <span class="Constant"> .                                                  ╎␣d                                               .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -841,10 +841,10 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
   ]
   <span class="Comment"># switch to sandbox window and hit 'page-down'</span>
   assume-console [
@@ -860,10 +860,10 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># cursor moves to first sandbox</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊␣   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎␣   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
   ]
   <span class="Comment"># hit 'page-up'</span>
   assume-console [
@@ -877,10 +877,10 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># sandbox editor displays again, cursor is in editor</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊␣                                                .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎␣                                                .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
   ]
 ]
 
@@ -985,10 +985,10 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># cursor moves down on recipe side</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .␣                                                 ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
+   <span class="Constant"> .␣                                                 ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
   ]
 ]
 
@@ -1012,15 +1012,15 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   print screen, cursor
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊␣                                                .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊1   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
+   <span class="Constant"> .                                                  ╎␣                                                .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
   ]
   <span class="Comment"># hit 'page-down'</span>
   assume-console [
@@ -1035,14 +1035,14 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># cursor moves to first sandbox</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊␣   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊1   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎␣   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
   ]
   <span class="Comment"># hit 'page-down' again</span>
   assume-console [
@@ -1054,12 +1054,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># just second sandbox displayed</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊1   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># hit 'page-down' again</span>
   assume-console [
@@ -1071,12 +1071,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># no change</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊1   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># hit 'page-up'</span>
   assume-console [
@@ -1088,14 +1088,14 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># back to displaying both sandboxes without editor</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊1   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
   ]
   <span class="Comment"># hit 'page-up' again</span>
   assume-console [
@@ -1109,15 +1109,15 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># back to displaying both sandboxes as well as editor</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊␣                                                .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊1   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
+   <span class="Constant"> .                                                  ╎␣                                                .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
   ]
   <span class="Comment"># hit 'page-up' again</span>
   assume-console [
@@ -1131,15 +1131,15 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># no change</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊␣                                                .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊1   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
+   <span class="Constant"> .                                                  ╎␣                                                .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
   ]
 ]
 
@@ -1159,13 +1159,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># hit 'page-down' and 'page-up' a couple of times. sandbox index should be stable</span>
   assume-console [
@@ -1178,12 +1178,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># cursor moves to first sandbox</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># hit 'page-up' again</span>
   assume-console [
@@ -1195,13 +1195,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># back to displaying both sandboxes as well as editor</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># hit 'page-down'</span>
   assume-console [
@@ -1214,12 +1214,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># cursor moves to first sandbox</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 </pre>
diff --git a/html/edit/006-sandbox-copy.mu.html b/html/edit/006-sandbox-copy.mu.html
index 27ff4b86..e0f8383f 100644
--- a/html/edit/006-sandbox-copy.mu.html
+++ b/html/edit/006-sandbox-copy.mu.html
@@ -52,13 +52,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># click at left edge of 'copy' button</span>
   assume-console [
@@ -70,13 +70,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># it copies into editor</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎foo                                              .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># cursor should be in the right place</span>
   assume-console [
@@ -87,13 +87,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊0foo                                             .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎0foo                                             .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -114,13 +114,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># click at right edge of 'copy' button (just before 'delete')</span>
   assume-console [
@@ -132,13 +132,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># it copies into editor</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎foo                                              .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># cursor should be in the right place</span>
   assume-console [
@@ -149,13 +149,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊0foo                                             .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎0foo                                             .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -271,13 +271,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># type something into the sandbox editor, then click on the 'copy' button</span>
   assume-console [
@@ -291,13 +291,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># copy doesn't happen</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊0                                                .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎0                                                .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># cursor should be in the right place</span>
   assume-console [
@@ -308,13 +308,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊01                                               .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎01                                               .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 </pre>
diff --git a/html/edit/007-sandbox-delete.mu.html b/html/edit/007-sandbox-delete.mu.html
index d1ab4452..0709f069 100644
--- a/html/edit/007-sandbox-delete.mu.html
+++ b/html/edit/007-sandbox-delete.mu.html
@@ -50,18 +50,18 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊1   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊divide-with-remainder 11, 3                      .</span>
-   <span class="Constant"> .                                                  ┊3                                                .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎divide-with-remainder 11, 3                      .</span>
+   <span class="Constant"> .                                                  ╎3                                                .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># delete second sandbox by clicking on left edge of 'delete' button</span>
   assume-console [
@@ -72,14 +72,14 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># delete first sandbox by clicking at right edge of 'delete' button</span>
   assume-console [
@@ -90,10 +90,10 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -199,12 +199,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎1   edit          copy            delete         .</span>
   ]
   <span class="Comment"># delete the second sandbox</span>
   assume-console [
@@ -216,12 +216,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># second sandbox shows in editor; scroll resets to display first sandbox</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -244,12 +244,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎1   edit          copy            delete         .</span>
   ]
   <span class="Comment"># delete the second sandbox</span>
   assume-console [
@@ -261,12 +261,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># second sandbox shows in editor; scroll resets to display first sandbox</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -290,12 +290,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊1   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># delete the second sandbox</span>
   assume-console [
@@ -307,13 +307,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># implicitly scroll up to first sandbox</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -335,15 +335,15 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊1   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
   ]
   <span class="Comment"># delete the second sandbox, then try to scroll down twice</span>
   assume-console [
@@ -357,12 +357,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># shouldn't go past last sandbox</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 </pre>
diff --git a/html/edit/008-sandbox-edit.mu.html b/html/edit/008-sandbox-edit.mu.html
index 8b8cf20d..49098fb4 100644
--- a/html/edit/008-sandbox-edit.mu.html
+++ b/html/edit/008-sandbox-edit.mu.html
@@ -51,13 +51,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># click at left edge of 'edit' button</span>
   assume-console [
@@ -69,12 +69,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># it pops back into editor</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎foo                                              .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎                                                 .</span>
+   <span class="Constant"> .]                                                 ╎                                                 .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># cursor should be in the right place</span>
   assume-console [
@@ -85,12 +85,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊0foo                                             .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎0foo                                             .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎                                                 .</span>
+   <span class="Constant"> .]                                                 ╎                                                 .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -111,13 +111,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># click at right edge of 'edit' button (just before 'copy')</span>
   assume-console [
@@ -129,12 +129,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># it pops back into editor</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎foo                                              .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎                                                 .</span>
+   <span class="Constant"> .]                                                 ╎                                                 .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># cursor should be in the right place</span>
   assume-console [
@@ -145,12 +145,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊0foo                                             .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎0foo                                             .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎                                                 .</span>
+   <span class="Constant"> .]                                                 ╎                                                 .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -221,18 +221,18 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊print-integer screen, 4                          .</span>
-   <span class="Constant"> .                                                  ┊screen:                                          .</span>
-   <span class="Constant"> .                                                  ┊  .4                             .               .</span>
-   <span class="Constant"> .                                                  ┊  .                              .               .</span>
-   <span class="Constant"> .                                                  ┊  .                              .               .</span>
-   <span class="Constant"> .                                                  ┊  .                              .               .</span>
-   <span class="Constant"> .                                                  ┊  .                              .               .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎print-integer screen, 4                          .</span>
+   <span class="Constant"> .                                                  ╎screen:                                          .</span>
+   <span class="Constant"> .                                                  ╎  .4                             .               .</span>
+   <span class="Constant"> .                                                  ╎  .                              .               .</span>
+   <span class="Constant"> .                                                  ╎  .                              .               .</span>
+   <span class="Constant"> .                                                  ╎  .                              .               .</span>
+   <span class="Constant"> .                                                  ╎  .                              .               .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># edit the sandbox</span>
   assume-console [
@@ -243,10 +243,10 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊print-integer screen, 4                          .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎print-integer screen, 4                          .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -270,12 +270,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊1   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># edit the second sandbox</span>
   assume-console [
@@ -287,13 +287,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># second sandbox shows in editor; scroll resets to display first sandbox</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -315,15 +315,15 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊1   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
   ]
   <span class="Comment"># edit the second sandbox, then resave</span>
   assume-console [
@@ -336,15 +336,15 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># no change in contents</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 1, 1                                         .</span>
-   <span class="Constant"> .                                                  ┊2                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊1   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 1, 1                                         .</span>
+   <span class="Constant"> .                                                  ╎2                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
   ]
   <span class="Comment"># now try to scroll past end</span>
   assume-console [
@@ -358,12 +358,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># screen should show just final sandbox with the right index (1)</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊1   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎1   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 </pre>
diff --git a/html/edit/009-sandbox-test.mu.html b/html/edit/009-sandbox-test.mu.html
index ea30b585..8c2324e4 100644
--- a/html/edit/009-sandbox-test.mu.html
+++ b/html/edit/009-sandbox-test.mu.html
@@ -52,13 +52,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># click on the '4' in the result</span>
   assume-console [
@@ -85,15 +85,15 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .␣                                                 ┊                                                 .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  reply 4                                         ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .␣                                                 ╎                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  reply 4                                         ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># now change the result</span>
   <span class="Comment"># then rerun</span>
diff --git a/html/edit/010-sandbox-trace.mu.html b/html/edit/010-sandbox-trace.mu.html
index 5fb46b84..5d8acd04 100644
--- a/html/edit/010-sandbox-trace.mu.html
+++ b/html/edit/010-sandbox-trace.mu.html
@@ -52,12 +52,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  stash [abc]                                     ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  stash [abc]                                     ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># click on the code in the sandbox</span>
   assume-console [
@@ -71,19 +71,19 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># trace now printed and cursor shouldn't have budged</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .␣                                                 ┊                                                 .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  stash [abc]                                     ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊abc                                              .</span>
+   <span class="Constant"> .␣                                                 ╎                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  stash [abc]                                     ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎abc                                              .</span>
   ]
   screen-should-contain-in-color <span class="Constant">245/grey</span>, [
    <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊abc                                              .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎abc                                              .</span>
   ]
   <span class="Comment"># click again on the same region</span>
   assume-console [
@@ -96,12 +96,12 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># trace hidden again</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .␣                                                 ┊                                                 .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  stash [abc]                                     ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .]                                                 ┊foo                                              .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .␣                                                 ╎                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  stash [abc]                                     ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .]                                                 ╎foo                                              .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -123,13 +123,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  stash [abc]                                     ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .  reply 4                                         ┊foo                                              .</span>
-   <span class="Constant"> .]                                                 ┊4                                                .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  stash [abc]                                     ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .  reply 4                                         ╎foo                                              .</span>
+   <span class="Constant"> .]                                                 ╎4                                                .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># click on the code in the sandbox</span>
   assume-console [
@@ -141,15 +141,15 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># trace now printed above result</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  stash [abc]                                     ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .  reply 4                                         ┊foo                                              .</span>
-   <span class="Constant"> .]                                                 ┊abc                                              .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊8 instructions run                               .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  stash [abc]                                     ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .  reply 4                                         ╎foo                                              .</span>
+   <span class="Constant"> .]                                                 ╎abc                                              .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎8 instructions run                               .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -166,11 +166,11 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊stash 123456789                                  .</span>
-   <span class="Constant"> .                                                  ┊123456789                                        .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎stash 123456789                                  .</span>
+   <span class="Constant"> .                                                  ╎123456789                                        .</span>
   ]
   <span class="Comment"># click on the stash under the edit-button region (or any of the other buttons, really)</span>
   assume-console [
@@ -182,11 +182,11 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># no change; doesn't die</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊stash 123456789                                  .</span>
-   <span class="Constant"> .                                                  ┊123456789                                        .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎stash 123456789                                  .</span>
+   <span class="Constant"> .                                                  ╎123456789                                        .</span>
   ]
 ]
 
diff --git a/html/edit/011-errors.mu.html b/html/edit/011-errors.mu.html
index 67c6c5d2..6c69076c 100644
--- a/html/edit/011-errors.mu.html
+++ b/html/edit/011-errors.mu.html
@@ -166,15 +166,15 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .  errors found                                                                   run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  get 123:num, foo:offset                         ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .foo: unknown element 'foo' in container 'number'  ┊                                                 .</span>
-   <span class="Constant"> .foo: first ingredient of 'get' should be a contai↩┊                                                 .</span>
-   <span class="Constant"> .ner, but got '123:num'                            ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎foo                                              .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  get 123:num, foo:offset                         ╎                                                 .</span>
+   <span class="Constant"> .]                                                 ╎                                                 .</span>
+   <span class="Constant"> .foo: unknown element 'foo' in container 'number'  ╎                                                 .</span>
+   <span class="Constant"> .foo: first ingredient of 'get' should be a contai↩╎                                                 .</span>
+   <span class="Constant"> .ner, but got '123:num'                            ╎                                                 .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   screen-should-contain-in-color <span class="Constant">1/red</span>, [
    <span class="Constant"> .  errors found                                                                                      .</span>
@@ -261,13 +261,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># error should disappear</span>
   screen-should-contain [
    <span class="Constant"> .                                                                                 run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊add 2, 2                                         .</span>
-   <span class="Constant"> .                                                  ┊4                                                .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎add 2, 2                                         .</span>
+   <span class="Constant"> .                                                  ╎4                                                .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -289,14 +289,14 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .  errors found (0)                                                               run (F4)           .</span>
-   <span class="Constant"> .recipe foo x:_elem -&gt; z:_elem [                   ┊                                                 .</span>
-   <span class="Constant"> .local-scope                                       ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .load-ingredients                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .y:&amp;:num &lt;- copy 0                                 ┊foo 2                                            .</span>
-   <span class="Constant"> .z &lt;- add x, y                                     ┊foo_2: 'add' requires number ingredients, but go↩.</span>
-   <span class="Constant"> .]                                                 ┊t 'y'                                            .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .recipe foo x:_elem -&gt; z:_elem [                   ╎                                                 .</span>
+   <span class="Constant"> .local-scope                                       ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .load-ingredients                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .y:&amp;:num &lt;- copy 0                                 ╎foo 2                                            .</span>
+   <span class="Constant"> .z &lt;- add x, y                                     ╎foo_2: 'add' requires number ingredients, but go↩.</span>
+   <span class="Constant"> .]                                                 ╎t 'y'                                            .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># now rerun everything</span>
   assume-console [
@@ -308,14 +308,14 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># error should remain unchanged</span>
   screen-should-contain [
    <span class="Constant"> .  errors found (0)                                                               run (F4)           .</span>
-   <span class="Constant"> .recipe foo x:_elem -&gt; z:_elem [                   ┊                                                 .</span>
-   <span class="Constant"> .local-scope                                       ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .load-ingredients                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .y:&amp;:num &lt;- copy 0                                 ┊foo 2                                            .</span>
-   <span class="Constant"> .z &lt;- add x, y                                     ┊foo_3: 'add' requires number ingredients, but go↩.</span>
-   <span class="Constant"> .]                                                 ┊t 'y'                                            .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .recipe foo x:_elem -&gt; z:_elem [                   ╎                                                 .</span>
+   <span class="Constant"> .local-scope                                       ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .load-ingredients                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .y:&amp;:num &lt;- copy 0                                 ╎foo 2                                            .</span>
+   <span class="Constant"> .z &lt;- add x, y                                     ╎foo_3: 'add' requires number ingredients, but go↩.</span>
+   <span class="Constant"> .]                                                 ╎t 'y'                                            .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -397,11 +397,11 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .  errors found                                                                   run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  x &lt;- copy 0                                     ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .foo: missing type for 'x' in 'x &lt;- copy 0'        ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎foo                                              .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  x &lt;- copy 0                                     ╎                                                 .</span>
+   <span class="Constant"> .]                                                 ╎                                                 .</span>
+   <span class="Constant"> .foo: missing type for 'x' in 'x &lt;- copy 0'        ╎                                                 .</span>
   ]
 ]
 
@@ -423,13 +423,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .  errors found                                                                   run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo \\[                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  x &lt;- copy 0                                     ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .9: unbalanced '\\[' for recipe                      ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎foo                                              .</span>
+   <span class="Constant"> .recipe foo \\[                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  x &lt;- copy 0                                     ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .9: unbalanced '\\[' for recipe                      ╎                                                 .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -452,16 +452,16 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .  errors found                                                                   run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  local-scope                                     ┊                                                 .</span>
-   <span class="Constant"> .  x:&amp;:point &lt;- new point:type                     ┊                                                 .</span>
-   <span class="Constant"> .  get x:&amp;:point, 1:offset                         ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .foo: first ingredient of 'get' should be a contai↩┊                                                 .</span>
-   <span class="Constant"> .ner, but got 'x:&amp;:point'                          ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎foo                                              .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  local-scope                                     ╎                                                 .</span>
+   <span class="Constant"> .  x:&amp;:point &lt;- new point:type                     ╎                                                 .</span>
+   <span class="Constant"> .  get x:&amp;:point, 1:offset                         ╎                                                 .</span>
+   <span class="Constant"> .]                                                 ╎                                                 .</span>
+   <span class="Constant"> .foo: first ingredient of 'get' should be a contai↩╎                                                 .</span>
+   <span class="Constant"> .ner, but got 'x:&amp;:point'                          ╎                                                 .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -485,17 +485,17 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .  errors found                                                                   run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  local-scope                                     ┊                                                 .</span>
-   <span class="Constant"> .  x:num &lt;- copy 0                                 ┊                                                 .</span>
-   <span class="Constant"> .  y:&amp;:point &lt;- new point:type                     ┊                                                 .</span>
-   <span class="Constant"> .  get *y:&amp;:point, x:num                           ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .foo: second ingredient of 'get' should have type ↩┊                                                 .</span>
-   <span class="Constant"> .'offset', but got 'x:num'                         ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎foo                                              .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  local-scope                                     ╎                                                 .</span>
+   <span class="Constant"> .  x:num &lt;- copy 0                                 ╎                                                 .</span>
+   <span class="Constant"> .  y:&amp;:point &lt;- new point:type                     ╎                                                 .</span>
+   <span class="Constant"> .  get *y:&amp;:point, x:num                           ╎                                                 .</span>
+   <span class="Constant"> .]                                                 ╎                                                 .</span>
+   <span class="Constant"> .foo: second ingredient of 'get' should have type ↩╎                                                 .</span>
+   <span class="Constant"> .'offset', but got 'x:num'                         ╎                                                 .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -516,14 +516,14 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   event-loop screen, console, env
   screen-should-contain [
    <span class="Constant"> .  errors found                                                                   run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  local-scope                                     ┊                                                 .</span>
-   <span class="Constant"> .  x:num &lt;- copy y:num                             ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .foo: use before set: 'y'                          ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎foo                                              .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  local-scope                                     ╎                                                 .</span>
+   <span class="Constant"> .  x:num &lt;- copy y:num                             ╎                                                 .</span>
+   <span class="Constant"> .]                                                 ╎                                                 .</span>
+   <span class="Constant"> .foo: use before set: 'y'                          ╎                                                 .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   <span class="Comment"># rerun the file, check for the same error</span>
   assume-console [
@@ -534,14 +534,14 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .  errors found                                                                   run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊foo                                              .</span>
-   <span class="Constant"> .recipe foo [                                      ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .  local-scope                                     ┊                                                 .</span>
-   <span class="Constant"> .  x:num &lt;- copy y:num                             ┊                                                 .</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
-   <span class="Constant"> .foo: use before set: 'y'                          ┊                                                 .</span>
-   <span class="Constant"> .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎foo                                              .</span>
+   <span class="Constant"> .recipe foo [                                      ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .  local-scope                                     ╎                                                 .</span>
+   <span class="Constant"> .  x:num &lt;- copy y:num                             ╎                                                 .</span>
+   <span class="Constant"> .]                                                 ╎                                                 .</span>
+   <span class="Constant"> .foo: use before set: 'y'                          ╎                                                 .</span>
+   <span class="Constant"> .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -562,15 +562,15 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># check that screen prints error message in red</span>
   screen-should-contain [
    <span class="Constant"> .  errors found (0)                                                               run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊get 1234:num, foo:offset                         .</span>
-   <span class="Constant"> .                                                  ┊unknown element 'foo' in container 'number'      .</span>
-   <span class="Constant"> .                                                  ┊first ingredient of 'get' should be a container,↩.</span>
-   <span class="Constant"> .                                                  ┊ but got '1234:num'                              .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎get 1234:num, foo:offset                         .</span>
+   <span class="Constant"> .                                                  ╎unknown element 'foo' in container 'number'      .</span>
+   <span class="Constant"> .                                                  ╎first ingredient of 'get' should be a container,↩.</span>
+   <span class="Constant"> .                                                  ╎ but got '1234:num'                              .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
   screen-should-contain-in-color <span class="Constant">7/white</span>, [
    <span class="Constant"> .                                                                                                    .</span>
@@ -595,15 +595,15 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain-in-color <span class="Constant">245/grey</span>, [
    <span class="Constant"> .                                                                                                    .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊                                                ↩.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                ↩.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -625,15 +625,15 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   <span class="Comment"># check that screen prints error message just once</span>
   screen-should-contain [
    <span class="Constant"> .  errors found (0)                                                               run (F4)           .</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .                                                  ┊get 1234:num, foo:offset                         .</span>
-   <span class="Constant"> .                                                  ┊unknown element 'foo' in container 'number'      .</span>
-   <span class="Constant"> .                                                  ┊first ingredient of 'get' should be a container,↩.</span>
-   <span class="Constant"> .                                                  ┊ but got '1234:num'                              .</span>
-   <span class="Constant"> .                                                  ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .                                                  ╎get 1234:num, foo:offset                         .</span>
+   <span class="Constant"> .                                                  ╎unknown element 'foo' in container 'number'      .</span>
+   <span class="Constant"> .                                                  ╎first ingredient of 'get' should be a container,↩.</span>
+   <span class="Constant"> .                                                  ╎ but got '1234:num'                              .</span>
+   <span class="Constant"> .                                                  ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -658,13 +658,13 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   ]
   screen-should-contain [
    <span class="Constant"> .  errors found (0)                                                               run (F4)           .</span>
-   <span class="Constant"> .recipe foo [                                      ┊                                                 .</span>
-   <span class="Constant"> .  {                                               ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .    loop                                          ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .  }                                               ┊foo                                              .</span>
-   <span class="Constant"> .]                                                 ┊took too long!                                   .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .                                                  ┊                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎                                                 .</span>
+   <span class="Constant"> .  {                                               ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .    loop                                          ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .  }                                               ╎foo                                              .</span>
+   <span class="Constant"> .]                                                 ╎took too long!                                   .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .                                                  ╎                                                 .</span>
   ]
 ]
 
@@ -690,14 +690,14 @@ _, c:num<span class="Special"> &lt;- </span>divide-with-remainder a, b
   <span class="Comment"># screen prints error message</span>
   screen-should-contain [
    <span class="Constant"> .  errors found (0)                                                               run (F4)           .</span>
-   <span class="Constant"> .recipe foo [                                      ┊                                                 .</span>
-   <span class="Constant"> .local-scope                                       ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .a:num &lt;- next-ingredient                          ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .b:num &lt;- next-ingredient                          ┊foo 4, 0                                         .</span>
-   <span class="Constant"> .stash [dividing by], b                            ┊foo: divide by zero in '_, c:num &lt;- divide-with-↩.</span>
-   <span class="Constant"> ._, c:num &lt;- divide-with-remainder a, b            ┊remainder a, b'                                  .</span>
-   <span class="Constant"> .reply b                                           ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .]                                                 ┊                                                 .</span>
+   <span class="Constant"> .recipe foo [                                      ╎                                                 .</span>
+   <span class="Constant"> .local-scope                                       ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .a:num &lt;- next-ingredient                          ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .b:num &lt;- next-ingredient                          ╎foo 4, 0                                         .</span>
+   <span class="Constant"> .stash [dividing by], b                            ╎foo: divide by zero in '_, c:num &lt;- divide-with-↩.</span>
+   <span class="Constant"> ._, c:num &lt;- divide-with-remainder a, b            ╎remainder a, b'                                  .</span>
+   <span class="Constant"> .reply b                                           ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .]                                                 ╎                                                 .</span>
   ]
   <span class="Comment"># click on the call in the sandbox</span>
   assume-console [
@@ -709,15 +709,15 @@ _, c:num<span class="Special"> &lt;- </span>divide-with-remainder a, b
   <span class="Comment"># screen should expand trace</span>
   screen-should-contain [
    <span class="Constant"> .  errors found (0)                                                               run (F4)           .</span>
-   <span class="Constant"> .recipe foo [                                      ┊                                                 .</span>
-   <span class="Constant"> .local-scope                                       ┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
-   <span class="Constant"> .a:num &lt;- next-ingredient                          ┊0   edit          copy            delete         .</span>
-   <span class="Constant"> .b:num &lt;- next-ingredient                          ┊foo 4, 0                                         .</span>
-   <span class="Constant"> .stash [dividing by], b                            ┊dividing by 0                                    .</span>
-   <span class="Constant"> ._, c:num &lt;- divide-with-remainder a, b            ┊14 instructions run                              .</span>
-   <span class="Constant"> .reply b                                           ┊foo: divide by zero in '_, c:num &lt;- divide-with-↩.</span>
-   <span class="Constant"> .]                                                 ┊remainder a, b'                                  .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┊━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━.</span>
+   <span class="Constant"> .recipe foo [                                      ╎                                                 .</span>
+   <span class="Constant"> .local-scope                                       ╎─────────────────────────────────────────────────.</span>
+   <span class="Constant"> .a:num &lt;- next-ingredient                          ╎0   edit          copy            delete         .</span>
+   <span class="Constant"> .b:num &lt;- next-ingredient                          ╎foo 4, 0                                         .</span>
+   <span class="Constant"> .stash [dividing by], b                            ╎dividing by 0                                    .</span>
+   <span class="Constant"> ._, c:num &lt;- divide-with-remainder a, b            ╎14 instructions run                              .</span>
+   <span class="Constant"> .reply b                                           ╎foo: divide by zero in '_, c:num &lt;- divide-with-↩.</span>
+   <span class="Constant"> .]                                                 ╎remainder a, b'                                  .</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╎─────────────────────────────────────────────────.</span>
   ]
 ]
 </pre>
diff --git a/html/edit/012-editor-undo.mu.html b/html/edit/012-editor-undo.mu.html
index c4ea79ee..97238c64 100644
--- a/html/edit/012-editor-undo.mu.html
+++ b/html/edit/012-editor-undo.mu.html
@@ -154,7 +154,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .          .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># cursor should be in the right place</span>
@@ -167,7 +167,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .1         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -284,7 +284,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .          .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -303,7 +303,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .012a      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># undo</span>
@@ -317,7 +317,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .a         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># cursor should be in the right place</span>
@@ -330,7 +330,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .3a        .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -351,7 +351,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .  abc     .</span>
    <span class="Constant"> .          .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># line is indented</span>
@@ -378,7 +378,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .  abc     .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># cursor should be at end of line</span>
@@ -391,7 +391,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .  abc1    .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -412,7 +412,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .a         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># redo</span>
@@ -426,7 +426,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .012a      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># cursor should be in the right place</span>
@@ -439,7 +439,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .0123a     .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -476,7 +476,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .          .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># redo</span>
@@ -490,7 +490,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .012       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># cursor should be in the right place</span>
@@ -503,7 +503,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .0123      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -532,7 +532,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .0abc      .</span>
    <span class="Constant"> .def       .</span>
    <span class="Constant"> .ghi       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
   <span class="Comment"># redo</span>
   assume-console [
@@ -547,7 +547,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .0abc      .</span>
    <span class="Constant"> .def       .</span>
    <span class="Constant"> .ghi       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
 ]
 
@@ -572,7 +572,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .  ab  cd  .</span>
    <span class="Constant"> .    efg   .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Constant">3</span>:num/<span class="Special">raw &lt;- </span>get *e, <span class="Constant">cursor-row:offset</span>
@@ -599,7 +599,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .  ab  cd  .</span>
    <span class="Constant"> .          .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># undo again</span>
@@ -619,7 +619,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .  ab  cd  .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># undo again</span>
@@ -639,7 +639,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .          .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># redo</span>
@@ -659,7 +659,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .  ab  cd  .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># redo again</span>
@@ -680,7 +680,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .  ab  cd  .</span>
    <span class="Constant"> .          .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># redo again</span>
@@ -701,7 +701,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .  ab  cd  .</span>
    <span class="Constant"> .    efg   .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -748,7 +748,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .1abc      .</span>
    <span class="Constant"> .def       .</span>
    <span class="Constant"> .ghi       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
 ]
 
@@ -904,7 +904,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .def       .</span>
    <span class="Constant"> .g1hi      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
 ]
 
@@ -955,7 +955,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .def       .</span>
    <span class="Constant"> .g1hi      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
 ]
 
@@ -1000,7 +1000,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .d1ef      .</span>
    <span class="Constant"> .ghi       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
 ]
 
@@ -1103,7 +1103,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .d         .</span>
    <span class="Constant"> .e         .</span>
    <span class="Constant"> .f         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
 ]
 
@@ -1138,7 +1138,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .d         .</span>
    <span class="Constant"> .e         .</span>
    <span class="Constant"> .f         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
 ]
 
@@ -1183,7 +1183,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .d1ef      .</span>
    <span class="Constant"> .ghi       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
 ]
 
@@ -1228,7 +1228,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .d1ef      .</span>
    <span class="Constant"> .ghi       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
 ]
 
@@ -1273,7 +1273,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .d1ef      .</span>
    <span class="Constant"> .ghi       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
 ]
 
@@ -1318,7 +1318,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .d1ef      .</span>
    <span class="Constant"> .ghi       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
 ]
 
@@ -1417,7 +1417,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .def       .</span>
    <span class="Constant"> .g1hi      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
   ]
 ]
 
@@ -1452,7 +1452,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .adbc      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   memory-should-contain [
@@ -1472,7 +1472,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   memory-should-contain [
@@ -1492,7 +1492,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   memory-should-contain [
@@ -1512,7 +1512,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .          .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   memory-should-contain [
@@ -1532,7 +1532,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   memory-should-contain [
@@ -1552,7 +1552,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># cursor moves</span>
@@ -1573,7 +1573,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .adbc      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   memory-should-contain [
@@ -1600,7 +1600,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .a         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Constant">3</span>:num/<span class="Special">raw &lt;- </span>get *e, <span class="Constant">cursor-row:offset</span>
@@ -1625,7 +1625,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># redo</span>
@@ -1644,7 +1644,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .a         .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1748,7 +1748,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .af        .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Constant">3</span>:num/<span class="Special">raw &lt;- </span>get *e, <span class="Constant">cursor-row:offset</span>
@@ -1773,7 +1773,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .adef      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># undo backspace</span>
@@ -1792,7 +1792,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abdef     .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># undo first delete</span>
@@ -1811,7 +1811,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abcdef    .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># redo first delete</span>
@@ -1831,7 +1831,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abdef     .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># redo backspace</span>
@@ -1851,7 +1851,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .adef      .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Comment"># redo deletes</span>
@@ -1871,7 +1871,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .af        .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -1936,7 +1936,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .a         .</span>
    <span class="Constant"> .def       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Constant">3</span>:num/<span class="Special">raw &lt;- </span>get *e, <span class="Constant">cursor-row:offset</span>
@@ -1956,7 +1956,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .def       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Constant">3</span>:num/<span class="Special">raw &lt;- </span>get *e, <span class="Constant">cursor-row:offset</span>
@@ -1977,7 +1977,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .a         .</span>
    <span class="Constant"> .def       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Constant">3</span>:num/<span class="Special">raw &lt;- </span>get *e, <span class="Constant">cursor-row:offset</span>
@@ -1997,7 +1997,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .a1        .</span>
    <span class="Constant"> .def       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -2039,7 +2039,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .c         .</span>
    <span class="Constant"> .def       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Constant">3</span>:num/<span class="Special">raw &lt;- </span>get *e, <span class="Constant">cursor-row:offset</span>
@@ -2059,7 +2059,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
    <span class="Constant"> .def       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Constant">3</span>:num/<span class="Special">raw &lt;- </span>get *e, <span class="Constant">cursor-row:offset</span>
@@ -2080,7 +2080,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .c         .</span>
    <span class="Constant"> .def       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
   <span class="Constant">3</span>:num/<span class="Special">raw &lt;- </span>get *e, <span class="Constant">cursor-row:offset</span>
@@ -2100,7 +2100,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
    <span class="Constant"> .          .</span>
    <span class="Constant"> .1c        .</span>
    <span class="Constant"> .def       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]
@@ -2139,7 +2139,7 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
   screen-should-contain [
    <span class="Constant"> .          .</span>
    <span class="Constant"> .abc       .</span>
-<span class="Constant">    .┈┈┈┈┈┈┈┈┈┈.</span>
+<span class="Constant">    .╌╌╌╌╌╌╌╌╌╌.</span>
    <span class="Constant"> .          .</span>
   ]
 ]