i'll dither anything. i don't care. i'll even dither my covid test. who's gonna stop me
hahahahaha I have discovered unlimited dithering power!
so the Iconfactory put out this fantastic lo-fi camera app called BitCam (free app, iPhone only, $2 in-app purchase for color graphics), and I did the verboten "take a pic of my screen" with it to make the last post, but it turns out at some point they added it as a Photos app editing extension? so now I can dither any file I can get my hands on, no cameras pointed at displays necessary hahahaha
BitCam does support one step higher resolution than this, which is amusingly so processor intensive it makes my iPhone chug a little to run the preview window.