Brightness icon

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24"><g fill="none" stroke-width="1.5"><path stroke="currentColor" d="m12 7l1.53 1.304l2.006.16l.16 2.005L17 12l-1.305 1.53l-.16 2.006l-2.004.16L12 17l-1.53-1.305l-2.006-.16l-.16-2.004L7 12l1.304-1.53l.16-2.006l2.005-.16L12 7Z"/><path fill="currentColor" d="M10.47 15.695L12 17V7l-1.53 1.304l-2.006.16l-.16 2.005L7 12l1.304 1.53l.16 2.006l2.005.16Z"/><path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" d="M21 3.6v16.8a.6.6 0 0 1-.6.6H3.6a.6.6 0 0 1-.6-.6V3.6a.6.6 0 0 1 .6-.6h16.8a.6.6 0 0 1 .6.6Z"/></g></svg>