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* png: print zstream errorsbptato2023-07-041-1/+5
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* png: fix grayscale regressionbptato2023-06-291-1/+1
| | | | it's 0x1, not 0x11. oops
* png: fix 4 bit grayscale & <8 bit indexed colorbptato2023-06-251-6/+17
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* Make Result.text, json return promisebptato2023-06-131-1/+0
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* Fix various layout bugs, prepare for image supportbptato2023-06-121-3/+3
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* Add indexed color, other png improvementsbptato2023-06-091-22/+71
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* Refactor bitmap, add png color modesbptato2023-06-061-0/+413
Now PNG encoding/decoding, painting, etc. are done in separate files. Plus we support all color modes except indexed color.