This is super cool. I wonder if you could convert it to colour as well, if you changed the rule from a single thread for the whole thing to three threads for t

This is super cool. I wonder if you could convert it to colour as well, if you changed the rule from a single thread for the whole thing to three threads for the whole thing (CMY). Might be quite an interesting effect since you'd need to sort of "smudge" colours across the image the same way you're essentially smudging the blacks. Edit: Wait a minute, actually it wouldn't work because you can't combine colours. Put magenta thread on top of cyan and you'd get... magenta.