Hey I missed you linking a sample image generated on the color system I was musing about.

https://twostopbits.com/item?id=5863

https://hackaday.io/project/164212/gallery#0f87e94323e101952...

I do not think it matches up. Too bad! But maybe the author will share details. I really wanted to know what they did.

Also, after I get past this appointment, maybe we can chat about dither vs artifact.