title: UIPopoverController, backgroundColor = clearColor
body: <p>I had a UITableView that I replaced with a UIPopoverController.  My UITableView's background was set to clearColor and it showed the custom background through the table.  The table cells also matched the grey tint of my background image.  </p>
  
  <p>Now when I use the UIPopovercontroller, with the background set to clearColor, I can see through my UIPopoverController, but the color is the "standard" popover controller color.  The kind of grey/blue tint.  Is there a way to change that?  Thanks.</p>