title: How to get the XML ressouces of the android compatibiliy pack
body: <p>I am using the Android Compatibility Pack v4 (android-support-v4.jar) for my app.</p>
  
  <p>I created a custom TabIndicator layout, but I want to use the default background!
  The default background is dependant to the platform</p>
  
  <ul>
  <li>On 2.3.x it is [focused: lightgrey; pressed: yellow; none: darkgrey]</li>
  <li>On 4.0.x it is [focused: lightblue; pressed: midblue; none: darkblue]</li>
  </ul>
  
  <p>Please see the attached screenshot for an example of the default colouring.
  <img src="https://i.stack.imgur.com/aoOQU.png" alt="The Background I am searching for"></p>
  
  <p>What do I have to add to my <code>android:background</code> to get this background?</p>