Particle Strokes paints with swarms of light. You draw the stroke and a swarm follows your hand, then keeps painting for a few seconds after you let go. That after-run is half the picture: a flick of the wrist carries on curling long after the wrist has stopped, and a slow arc trails threads behind it.
Twenty-two movements decide what the swarm does. Flame circles your pointer into tongues, Trail runs after it, Ribbon and Strand lay parallel threads, Spring overshoots and swings back, Vortex and Orbit turn a line into spirals and rings, Rain falls with wind, Jitter rattles into charcoal grain, and Stick flies briefly and then stays exactly where it landed.
Every particle leaves a stamp, and the stamp is yours to draw. Build it in a square with six tools and seven kinds of element, or press Surprise and get a whole blueprint at once, from leaves and feathers to crystals and comets. Spacing is the slider that changes everything: turn it up and the stroke stops being a line and becomes single marks strung along the path, so a leaf-shaped stamp really does scatter leaves.
Dynamics give a stroke a shape instead of a constant fog. A curve panel, like a tone curve, lets you draw a separate shape for size, amount, scatter, opacity, pull and swirl, so a stroke can swell while its scatter narrows and its pull lets go. Add mirrors up to twelvefold and a scribble comes out as a mandala.
The glow is a real pass rather than a blur laid over the top: bright parts are lifted out, blurred at two sizes and added back, which is why light looks like light and not like fog. Everything arrives as a transparent layer, and the layer stays re-editable, because every stroke is recorded and replayed rather than flattened. Everything is computed in your browser.
