I got really bored so I wrote a simple dithering tool in Kotlin. It is surprising how little loss you get when reducing an image to 8 colors. Source code: https://gist.github.com/Frederikam/115a15450bec82720d3bb5a70b5ceefd
@lord you can see how it seems to reverse its effect
@lord here's the unblurred image, followed by an upscaled then blurred image, followed by the second image down-scaled
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