app/assets/svgs/heroicons/solid/stop.svg
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true" data-slot="icon">
<path fill-rule="evenodd" d="M4.5 7.5a3 3 0 0 1 3-3h9a3 3 0 0 1 3 3v9a3 3 0 0 1-3 3h-9a3 3 0 0 1-3-3v-9Z" clip-rule="evenodd"/>
</svg>