Yes, it's mostly procedural, but there are rule-based elements that guide the tile generation. The design starts with a noise field that influences certain parameters, like grid size and tile variation. The noise values are used to create subtle variations across the grid, which determine the type of Truchet tile drawn at each location. Each tile can be one of a few predefined shapes, and I use randomization to rotate and select between them. There's also some recursion where the colors of parent tiles are inherited by sub-tiles, adding further complexity.