Palette is not preserved about chunky_png HOT 5 CLOSED

You're right, the palette is is read during decoding and then thrown away. A new palette will be created on save.
Changing this will take some significant work though.

Just curious: why is it important to keep the palette in the same order?

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When working with pixel art,most pixel artists order the palette manually in a specific way. For example, there's a ramp of grayscales, a ramp of red colors, a ramp of greens, etc. This makes it easy to use such a palette in programs such as graphx2, gimp, etc. If the palette's order gets changed, then it also gets jumbled in the user interface of these programs, which is undesirable.

I'm considering using ChunkyPNG for yet another pixel art editor, so I need palette to be preserved. I know it's quite a lot of work, so I forked the repository and I'll poke at it a bit.

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Just a note about this: there might be times (and I think that most of the times) where you might want to use the current behaviour as the default one. Your case @beoran is a particular case, and while it seems very interesting and useful, most of the users will want just the minimal palette on their pngs.

btw: cool library!!

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Yes, I am not going to implement this myself, although I do welcome patches that implement this, as long as it keeps the standard use case in mind.

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Going to close this; fixing this would be a major rewrite of the library.

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