# red,black,vanila

> Animated WebGL shader background in the Silk style. Generated by the 21st.dev Shader Builder. 4-color palette (#171717, #821212, #990F0F, #FFF7E5). Features: cursor-reactive (swirl). A drop-in, zero-dependency React component for hero sections and animated gradient/noise backgrounds.

- Author: [Michał Wlazło](https://21st.dev/@wlazlo.michal05)
- License: mit
- Tags: Animation, WebGL, Shader, Hero Background, Shader Background
- Live preview: https://21st.dev/@wlazlo.michal05/components/red-black-vanila

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/wlazlo.michal05/red-black-vanila?api_key=$API_KEY_21ST"
```

Requires a 21st API key (generate one at https://21st.dev/mcp) passed as `API_KEY_21ST`. Free accounts get a limited number of installs per day; unlimited on a paid plan — see https://21st.dev/pricing.

Full component directory: https://21st.dev/llms.txt · More like this: https://21st.dev/community/components/s/animation.md