Acrylic pouring with real cells — density-driven sinking opens the hole and Marangoni flow from silicone makes it round, each ringed by the colour it displaced and laced with filigree where two rings met.
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.