 vector of interactivity tools options (acceptable values are: "pan", "wheel_zoom", "box_zoom", "resize", "crosshair", "box_select", "lasso_select", "reset", "save", "help").  Additionally, tool functions can be called on a figure to specify more control - see the "See Also" section below for a list of tool functions.  If <code>NULL</code>, the toolbar will not be drawn.  If <code>""</code> the toolbar will be drawn but no tools will be added by default.</p></td>
    </tr>
    <tr>
      <th>theme</th>
    