Add coloring of statusbar.current tab in view

This theme color applies to the tab title text of the statusbar tab that
is currently shown.

The (somewhat confusingly named) `statusbar.active` theme color now
applies to all other tabs (before, it applied to all tabs).

Coloring of a tab that is highlighted/has new messages is done as before
using the `statusbar.new` theme color.

The default color is set to `cyan`, and thus causes no visible change
for users -- until modified.

0 files changed, 0 insertions, 0 deletions