
    <li>one or more indicators that show the instrument's value</li>
  </ul>
  <p>
    Optionally there are other TextBlocks or Shapes that show additional information. Indicators can
    be Shapes or TextBlocks or more complicated Panels. For more about scales, please read
    <a href="../intro/graduatedPanels.html">Graduated Panels</a>. For simplicity, all of these
    instruments only show one value. But you could define instruments that show multiple values on
    the same scale, or that have multiple 