Nico Weber 1a663078ed LibGfx/WebPLoader: Use transparent black as animation background color ...

This matches libwebp (see ZeroFillCanvas() call in
libwebp/src/demux/anim_decode.c:355 and ZeroFillFrameRect() call
in line 435, but in WebPAnimDecoderGetNext()) and makes files
written e.g. by asesprite look correct -- even though the old
behavior is also spec-compliant and arguably makes more sense.
Now nothing looks at the background color stored in the file.

See PR for an example image where it makes a visible difference.

2024-07-12 19:01:07 -04:00

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