Thanks! Some splits are randomly generated by traversing the line and each point has a small chance (5% or so) to create a split and change color. I've tried other techniques as well where lines change color by which region of the the canvas they are in etc.
I even wrote a small UI using Rust and egui to render the drawings in real-time just to play around with that specific part. It looks like this https://imgur.com/a/Zfp1ls3 and is open source https://github.com/damoonrashidi/generative-art/tree/develop...