system-uicons/src/images/icons/check_circle.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(2 2)"><circle cx="8.5" cy="8.5" r="8"/><path d="m5.5 9.5 2 2 5-5"/></g></svg>