title: Android - actionBar.setDisplayHomeAsUpEnabled issues
body: <p>In my activity which extends SherlockFragmentActivity I have action bar and have also set  actionBar.setDisplayHomeAsUpEnabled(true) to come back to my previous activity. Everything works fine. But when i click on home button, the background color should be applied only to the app icon but it also applies to the "title" on action bar as shown in screen shot. I dont want this to happen. When i click on home button, only the app icon should be click able(background color should be applied only for app icon) and not the title. Any idea how can i do this?</p>
  
  <p><img src="https://i.stack.imgur.com/eHvfy.png" alt="enter image description here"></p>
  
  <p>my activity code:</p>
  
  <pre><code>ActionBar actionBar = getSupportActionBar();
  actionBar.setDisplayHomeAsUpEnabled(true);
  actionBar.setTitle(some_string);
  </code></pre>