So it's pretty simple - it's basically a LOGO-inspired language of simple commands (polygons, floodfill operations, lines, draw order, delay commands, etc) which is then rendered by equivalent p5.js commands. There's a couple specialized higher level PicScript commands for drawing commonly seen geometry in older adventure games (hills, objects in nature) as well.
https://github.com/scpedicini/agi-stylist
I just wanted something relatively human readable so after an LLM did a first pass on an image, I could easily make changes to it.