title: Change Status Bar color when entering Contextual Action Mode
body: <p>I have an application that uses theme attribute (colorPrimaryDark) to color the Status Bar on Android v21+:</p>
  
  <p><img src="https://i.stack.imgur.com/J0474.png" alt="enter image description here"></p>
  
  <p>This is working fine. Now, when user long-presses a list item and enters the contextual action mode, I am able to color the CAB bar using attribute actionModeBackground so it looks like this:</p>
  
  <p><img src="https://i.stack.imgur.com/SApv3.png" alt="enter image description here"></p>
  
  <p>So the action bar is gray, which is what I want, but <strong>the status bar</strong> is still colored using the <strong>theme dark color</strong>. I don't want that, I want to change it to dark gray or black. </p>
  
  <p>How can I do this? I don't see any theme attribute that would work here.</p>