Penpot on Mythryl: “Three stroke types. Three rendering engines. One surprisingly…”

Three stroke types. Three rendering engines. One surprisingly complex problem Ever wondered why inner, center, and outer strokes behave differently across CSS, SVG, and WebGL? Here's a behind-the-scenes look at how Penpot solves The Three-Stroke Problem penpot.app/blog/the-thr...

penpot.appThe Three-Stroke ProblemWhen three kinds of strokes entangle with each other, the resulting design system is chaotic for most initial conditions. Let's go through the stroke rendering in design software.

6/8/26, 8:05 am1 repost4 likes

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