black-square-button

pnpm dlx shadcn@latest add https://opensourceicon.com/r/fluent-emoji-high-contrast/black-square-button.json

<svg xmlns="http://www.w3.org/2000/svg" width="96" height="96" viewBox="0 0 32 32"><path fill="currentColor" d="M5 1a4 4 0 0 0-4 4v22a4 4 0 0 0 4 4h22a4 4 0 0 0 4-4V5a4 4 0 0 0-4-4zm0 6a2 2 0 0 1 2-2h18a2 2 0 0 1 2 2v18a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2z"/></svg>