VFX-JS

Your system asks for reduced motion, so VFX-JS draws nothing. Demos on this site show plain HTML.

Type

Rgba

effects/src/duotone.ts:7 ↗ 
import type { Rgba } from "@vfx-js/effects";

RGBA colour, each channel in [0, 1].

type Rgba = [number, number, number, number]