right-angle-triangle-filled

pnpm dlx shadcn@latest add https://opensourceicon.com/r/boxicons/right-angle-triangle-filled.json

<svg xmlns="http://www.w3.org/2000/svg" width="96" height="96" viewBox="0 0 24 24"><path fill="currentColor" d="M21.38 2.08a.99.99 0 0 0-1.09.22l-18 17.99c-.29.29-.37.72-.22 1.09s.52.62.92.62h18c.55 0 1-.45 1-1V3c0-.4-.24-.77-.62-.92Z"/></svg>