md-contrast

pnpm dlx shadcn@latest add https://opensourceicon.com/r/ion/md-contrast.json

<svg xmlns="http://www.w3.org/2000/svg" width="96" height="96" viewBox="0 0 512 512"><path d="M256 48C141.1 48 48 141.1 48 256s93.1 208 208 208 208-93.1 208-208S370.9 48 256 48zm113.1 321.1C338.9 399.4 298.7 416 256 416V96c42.7 0 82.9 16.6 113.1 46.9C399.4 173.1 416 213.3 416 256s-16.6 82.9-46.9 113.1z" fill="currentColor"/></svg>