<th>id</th>
      <td><p>an id value in <code>data</code> to identify layers when interacting in Shiny apps.</p></td>
    </tr>
    <tr>
      <th>palette</th>
      <td><p>string or matrix. String will be one of <code><a href='https://rdrr.io/pkg/colourvalues/man/colour_palettes.html'>colourvalues::colour_palettes()</a></code>.
A matrix must have at least 5 rows, and 3 or 4 columns of values between [0, 255],
where the 4th column represents the alpha. You can use a named list to specify a different
palette