boxicons/svg/solid/bxs-brightness-half.svg

<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24"><path d="M21.546 11.646 19 9.101V5.5a.5.5 0 0 0-.5-.5h-3.601l-2.546-2.546a.5.5 0 0 0-.707 0L9.101 5H5.5a.5.5 0 0 0-.5.5v3.601l-2.546 2.546a.5.5 0 0 0 0 .707L5 14.899V18.5a.5.5 0 0 0 .5.5h3.601l2.546 2.546a.5.5 0 0 0 .707 0L14.899 19H18.5a.5.5 0 0 0 .5-.5v-3.601l2.546-2.546a.5.5 0 0 0 0-.707zM12 8a4 4 0 0 1 0 8"/></svg>