The einstein found in 2023 by a retired print technician — one shape that tiles the plane and can only do it aperiodically, with the reflected hats that carry the proof picked out on a drop.
Drawn with: a WebGL2 shader.
Reacts to and looks like: gpu, webgl2 and audio-reactive.
Family: Visualiser.
Runs in your browser. The preview above is the same program the renderer uses.