ghtAccent</code>: Same as <code>highlightMain</code>.
  Used for cosmetics.</li>
  <li><code>highlightButton</code>: Color to indicate focus is on a
  button.</li>
  <li><code>highlightWarning</code>: Same as <code>highlightMain</code>,
  but only used for parameters which requires extra caution.</li>
  <li><code>overlay</code>: Overlay color. Used to overlay texts and
  indicators.</li>
  <li><code>overlayHighlight</code>: Overlay color to highlight current
  focus.</li>
  </ul>
  <h2 id="controls"><a href