title: How do I change the style of the MediaRouteButton in the ActionBar?
body: <p>I realize I'm probably doing something fundamentally wrong with styles and themes but I'm still a bit of an Android newbie so please excuse my ignorance.  I'm trying to change the style of my MediaRouteButton from the default dark to light since I have a light ActionBar.  My MediaRouteButton is implemented in the ActionBar as follows:</p>
  
  <pre><code>&lt;item
      android:id="@+id/menu_item_cast"
      android:actionProviderClass="android.support.v7.app.MediaRouteActionProvider"
      android:actionViewClass="android.support.v7.app.MediaRouteButton"
      android:showAsAction="always"
      android:actionButtonStyle="@android:style/Theme.MediaRouter.Light"/&gt;
  </code></pre>
  
  <p>However, this gives me:</p>
  
  <p>android/res/menu/main.xml:24: error: Error: No resource found that matches the given name (at 'actionButtonStyle' with value '@android:style/Theme.MediaRouter.Light').</p>