</td>
    </tr>
    <tr>
      <th>data</th>
      <td><p>an optional data frame, providing the source for inputs x, y, text, and other glyph properties</p></td>
    </tr>
    <tr>
      <th>color</th>
      <td><p>text color values for the text</p></td>
    </tr>
    <tr>
      <th>alpha</th>
      <td><p>text alpha values for the text</p></td>
    </tr>
    <tr>
      <th>angle</th>
      <td><p>angle to rotate the text in radians</p></td>
    </tr>
    <tr>
      <th>align</th>
      <td><p>text align va