Your system asks for reduced motion, so VFX-JS draws nothing. Demos on this site show plain HTML.
Variable
ASCII_PRESETS
effects/src/ascii.ts:41 ↗import { ASCII_PRESETS } from "@vfx-js/effects";Built-in character ramps, ordered dark → light. Suited for
light-on-dark output (more "ink" = brighter); flip with
invert: true for dark-on-light.
const ASCII_PRESETS: Record<AsciiPresetName, string>