title: Change of homeAsUpIndicator icon in ActionbarSherlock does not effect in ICS?
body: <p>I try to change the <code>homeAsUpIndicator</code> icon in the <code>ActionBar</code>. I use <code>ActionBarSherlock</code> to be compatible with older Android Versions. I set a specific theme to my Activity when the App runs on a device with Older verions of ICS and ICS it shows different colors.</p>
  
  <p>This is the style i am using</p>
  
  <pre><code>&lt;style name="Theme.PM" parent="@style/Theme.Sherlock.Light"&gt;
  
      &lt;item name="android:homeAsUpIndicator"&gt;@drawable/back_sign&lt;/item&gt; 
      &lt;item name="homeAsUpIndicator"&gt;@drawable/back_sign&lt;/item&gt;
  
  &lt;/style&gt;
  </code></pre>
  
  <p>like this below image's 
  For ICS  see that home as up indicator look like black color.</p>
  
  <p><img src="https://i.stack.imgur.com/PDqCw.png" alt="enter image description here"></p>
  
  <p>For Older versions of ICS  see that home as up indicator look like white color.</p>
  
  <p><img src="https://i.stack.imgur.com/vviTc.png" alt="enter image description here"></p>
  
  <p>i am using same image for both versions, but it's looking different on ICS. how to solve this problem..</p>