title: Android 5.0: howto change Overview Screen Task Title background color
body: <p>The new Android 5.0 Lollipop <a href="http://developer.android.com/guide/components/recents.html" rel="noreferrer">Overview Screen</a> features each App's Task with a screenshot and a (by default) grey title bar.</p>
  
  <p>Some Lollipop Apps (For example the new Play Store) use different colours. How can the colour of the Overview Screen title background be changed?</p>
  
  <p><img src="https://i.stack.imgur.com/254qS.jpg" alt="Android Overview Screen, Creative Commons Attribution 2.5"></p>