nextcloud-server/core/img/actions/screen.svg

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg xmlns="http://www.w3.org/2000/svg" height="16" width="16" version="1.1" viewBox="0 0 16 16">
 <path fill-rule="evenodd" d="m2 2c-0.554 0-1 0.446-1 1v8c0 0.554 0.446 1 1 1h5v1h-2v2h6v-2h-2v-1h5c0.554 0 1-0.446 1-1v-8c0-0.554-0.446-1-1-1zm1 2h10v6h-10z"/>
</svg>