A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, textHorizontal } from '@wordpress/icons';
<Icon icon={textHorizontal} />
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M8.2 14.4h3.9L13 17h1.7L11 6.5H9.3L5.6 17h1.7l.9-2.6zm2-5.5 1.4 4H8.8l1.4-4zm7.4 7.5-1.3.8.8 1.4H5.5V20h14.3l-2.2-3.6z"></path></svg>
textHorizontal – WordPress Icon Library