<button
  class="theme-toggle"
  type="button"
  title="Toggle theme"
  aria-label="Toggle theme"
>
  <svg
    xmlns="http://www.w3.org/2000/svg"
    aria-hidden="true"
    width="1em"
    height="1em"
    fill="currentColor"
    class="theme-toggle__expand"
    viewBox="0 0 32 32"
  >
    <clipPath id="theme-toggle__expand__cutout">
      <path d="M0-11h25a1 1 0 0017 13v30H0Z" />
    </clipPath>
    <g clip-path="url(#theme-toggle__expand__cutout)">
      <circle cx="16" cy="16" r="8.4" />
      <path d="M18.3 3.2c0 1.3-1 2.3-2.3 2.3s-2.3-1-2.3-2.3S14.7.9 16 .9s2.3 1 2.3 2.3zm-4.6 25.6c0-1.3 1-2.3 2.3-2.3s2.3 1 2.3 2.3-1 2.3-2.3 2.3-2.3-1-2.3-2.3zm15.1-10.5c-1.3 0-2.3-1-2.3-2.3s1-2.3 2.3-2.3 2.3 1 2.3 2.3-1 2.3-2.3 2.3zM3.2 13.7c1.3 0 2.3 1 2.3 2.3s-1 2.3-2.3 2.3S.9 17.3.9 16s1-2.3 2.3-2.3zm5.8-7C9 7.9 7.9 9 6.7 9S4.4 8 4.4 6.7s1-2.3 2.3-2.3S9 5.4 9 6.7zm16.3 21c-1.3 0-2.3-1-2.3-2.3s1-2.3 2.3-2.3 2.3 1 2.3 2.3-1 2.3-2.3 2.3zm2.4-21c0 1.3-1 2.3-2.3 2.3S23 7.9 23 6.7s1-2.3 2.3-2.3 2.4 1 2.4 2.3zM6.7 23C8 23 9 24 9 25.3s-1 2.3-2.3 2.3-2.3-1-2.3-2.3 1-2.3 2.3-2.3z" />
    </g>
  </svg>
</button>