IconButton

() => (
  <IconButton aria-label="Toggle dark mode">
    <svg
      xmlns="http://www.w3.org/2000/svg"
      viewBox="0 0 24 24"
      width="24"
      height="24"
      fill="currentcolor"
    >
      <circle
        r={11}
        cx={12}
        cy={12}
        fill="none"
        stroke="currentcolor"
        strokeWidth={2}
      />
    </svg>
  </IconButton>
)