md-square-outline

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

<svg xmlns="http://www.w3.org/2000/svg" width="96" height="96" viewBox="0 0 512 512"><path d="M405.3 106.7v298.7H106.7V106.7h298.6m0-42.7H106.7C83.2 64 64 83.2 64 106.7v298.7c0 23.5 19.2 42.7 42.7 42.7h298.7c23.5 0 42.7-19.2 42.7-42.7V106.7C448 83.2 428.8 64 405.3 64z" fill="currentColor"/></svg>