ghost/admin/public/assets/icons/file-upload.svg
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
<title>file-upload</title>
<defs>
<style>
.a{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.5px}
</style>
</defs>
<path class="a" d="M8.25 14.25 12 18l3.75-3.75M12 6.75V18"/>
<circle class="a" cx="12" cy="12" r="11.25"/>
</svg>