Vectric Customer

Just found this. If you're looking for a way to make some interesting custom textures this may help. If not, at lease it's a time killer.

https://pmneila.github.io/jsexp/grayscott/

Interesting. Thanks, John.

Looks a bit like some wood that has been attacked by boring beetles or carpenter bee or any of the wood eating beasts. Just sayin.

Jason has a program that produces patterns like that but based on photographs - https://jasondorie.com/page_cnc.html