Only sort generated palette colors by PLTE order for indexed PNG images

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Non-indexed images can still have a PLTE chunk. We should use
`sortRgb` instead of `sortIndexed` for them, since their pixels' colors
may not all be present in the PLTE chunk and would be unsortable.

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Rangi

2026-09-13 18:53:31 -04:00

parent 49b3f566b1

commit f8a1da71c1

6 changed files with 11 additions and 8 deletions

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test/gfx/rgb_with_plte.out.2bpp

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test/gfx/rgb_with_plte.out.pal

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