title: Can't style datepiker popup dialog
body: <p>I have a problem with customizing the datepicker <a href="http://i.stack.imgur.com/MO5L3.png" rel="noreferrer">popup dialog</a>(For example change color of header). I can't style it by attribute style like textField by textFieldStyle. It doesn't have any class or id. </p>
  
  <p>How can I do it? </p>