system-uicons/src/images/icons/component_add.svg

<svg height="21" viewBox="0 0 21 21" width="21" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" transform="translate(3 2)"><path d="m6.5 3.5h-4c-1.1045695 0-2 .8954305-2 2v7c0 1.1045695.8954305 2 2 2h7c1.1045695 0 2-.8954305 2-2v-3.5-.5"/><path d="m11.5.5v6"/><path d="m11.5.5v6" transform="matrix(0 1 -1 0 15 -8)"/></g></svg>