@liaizon @crusom
I haven't seen someone using dithering for non-artsy reasons since the last century. how peculiar.

also these are JPGs...does mastodon convert image formats? let's test this...
nope, looks like you uploaded dithered JPGs. just turn down the JPG quality next time. you'll get smaller images with less visual sideffects. JPGs and dithering are pretty much incompatible