A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, chevronDownSmall } from '@wordpress/icons';
<Icon icon={chevronDownSmall} />
<svg viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false"><path d="m15.99 10.889-3.988 3.418-3.988-3.418.976-1.14 3.012 2.582 3.012-2.581.976 1.139Z"></path></svg>
chevronDownSmall – WordPress Icon Library