PixiJS is a WebGL-accelerated 2D renderer that lets you draw tens of thousands of sprites at 60 FPS without breaking a sweat. You'd reach for this when Canvas2D feels sluggish or you're building particle systems, sprite-based games, or interactive data visualizations that need serious performance. The skill covers the core Application setup, Sprite and Texture handling, the Graphics API for vector drawing, ParticleContainer for rendering massive sprite batches, and the filter system for blur and displacement effects. It's notably lighter than Three.js when you don't need 3D, but overkill if you're just animating a few DOM elements. Good fit for HUD overlays on 3D scenes or anything requiring hardware-accelerated 2D canvas work.
npx skills add https://github.com/freshtechbro/claudedesignskills --skill pixijs-2d