<svg xmlns="http://www.w3.org/2000/svg" width="36" height="36" viewBox="0 0 36 36">
    <path d="M0 0h36v36h-36z" fill="none"/>
    <path d="M18 3c-8.28 0-15 6.72-15 15s6.72 15 15 15c8.28 0 15-6.72 15-15s-6.72-15-15-15zm1 22h-2v-2h2v2zm0-5h-2v-9h2v9z"/>
</svg>