A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, thumbsUp } from '@wordpress/icons';
<Icon icon={thumbsUp} />
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="m3 12 1 8h1.5l-1-8H3Zm15.8-2h-4.4l.8-3.6c.3-1.3-.7-2.4-1.9-2.4h-.2c-.6 0-1.2.3-1.6.8l-5 6.6c-.3.4-.4.8-.4 1.2v.2l.7 5.4v.2c.2.9 1 1.5 1.9 1.5h8.2c.9 0 1.7-.6 1.9-1.4l1.8-6c.4-1.3-.6-2.6-1.9-2.6Zm.5 2.1-1.8 6c0 .2-.3.4-.5.4H8.8c-.3 0-.5-.2-.5-.4l-.7-5.4v-.4l5-6.6c0-.1.2-.2.4-.2h.2c.3 0 .6.3.5.6l-.8 3.6c-.1.4 0 .9.3 1.3s.7.6 1.2.6h4.4c.3 0 .6.3.5.6Z"></path></svg>
thumbsUp – WordPress Icon Library