Comments (1)
kornelski
commented on July 18, 2024
Unfortunately this is not possible. pngquant internally operates in premultiplied alpha color space, so it's incapable of preserving color of fully-transparent pixels (it's a division by zero).
Additionally, even if the code was changed to operate on uncorrelated RGBA, this would severely degrade color quality of visible pixels. This is because the PNG8 mode doesn't have a separate alpha channel, so it would use palette entries for each RGBA combination.
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