direction (i.e. "free_x" or "free_y"). Defaults to "fixed".</p></td>
    </tr>
    <tr>
      <th>caption</th>
      <td><p>Caption title string.</p></td>
    </tr>
    <tr>
      <th>caption_wrap</th>
      <td><p>Number of characters to wrap the caption to. Defaults to 80.</p></td>
    </tr>
    <tr>
      <th>font_family</th>
      <td><p>Font family to use. Defaults to "".</p></td>
    </tr>
    <tr>
      <th>font_size_title</th>
      <td><p>Font size for the title text. Defaults to 11.</p></td>
    <