A searchable guide to the complete WordPress Icon Library (@wordpress/icons) package from Gutenberg.
import { Icon, formatIndentRTL } from '@wordpress/icons';
<Icon icon={formatIndentRTL} />
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" aria-hidden="true" focusable="false"><path d="M20 5.5H4V4H20V5.5ZM12 12.5H4V11H12V12.5ZM20 20V18.5H4V20H20ZM20.0303 9.03033L17.0607 12L20.0303 14.9697L18.9697 16.0303L15.4697 12.5303L14.9393 12L15.4697 11.4697L18.9697 7.96967L20.0303 9.03033Z"></path></svg>
formatIndentRTL – WordPress Icon Library