title: Custom theme for android DatePicker DialogFragment shows unpleasant border
body: <p>I am trying to use a DialogFragment to host a date picker as recommended by Google here: <a href="http://developer.android.com/guide/topics/ui/controls/pickers.html" rel="nofollow">http://developer.android.com/guide/topics/ui/controls/pickers.html</a></p>
  
  <p>Using the sample code at the page above works OK, but I want to be able to set a specific theme for the date picker dialog.</p>
  
  <p>If I modify the OnCreateDialog method in the dialog fragment from their sample, so that it returns a date picker with specific theme like this</p>
  
  <pre><code>...
  // Create a new instance of DatePickerDialog and return it
  DatePickerDialog dlg = new DatePickerDialog(getActivity(),
     Android.R.style.Theme_DeviceDefault_Light_Dialog, this, year, month, day); 
  return dlg;
  ...
  </code></pre>
  
  <p>(i.e. just using the other constructor for DatePickerDialog, where you can provide a theme)
  I get an ugly non-transparent border around my date picker when it is displayed:</p>
  
  <p>(screenshot here: <a href="http://i.stack.imgur.com/WO1YD.png" rel="nofollow">http://i.stack.imgur.com/WO1YD.png</a>)</p>
  
  <p>What can I do to get rid of the border?</p>