Marbler

Marbling the way it works in a tray of water. Drop colour with the Ink, Line or Circle tools and hold to let it bloom, then drag the tine tools through it — forwards, backwards or in a circle — to comb the drops into the feathered ribbons marbled paper is made of. Palettes come ready-made or entirely random, the canvas pans and zooms while you work, and the sheet saves as a PNG.