Most radar charts pull in SVG path math or a JavaScript charting library. You can skip both. With st-core.fscss v2 , a spider (radar) chart is: an FSCSS array of scores (0–100) polar coordinates stored as CSS variables ( --st-sxN , --st-syN ) shapes drawn with clip-path: polygon() rings and spokes from gradients No canvas. No SVG. No chart runtime on the critical path. Source: github.com/fscss-ttr/st-core.fscss Here’s how it works 1. Data ...