title: styling ActionbarSherlock: textColor of the action-items
body: <p>I was changing the background  of the Actionbar in my App and to make text readable again I have to change the color of the text. I was successful with title/subtitle and the tab-texts, but I am struggling with the text of the action-items - they stay white no matter what I tried . Anyone has a hint on how to do that?
  Also the overflow-icon is white which does not look too good on the wooden background - is that an <em>extremely</em> good reason to use the stuff below? I am not really sure what's the reason to not do it, but as I do not have a big device-test-park I better want to be sure ;-)</p>
  
  <pre><code>&lt;!-- the following can be used to style the overflow menu button
       only do this if you have an *extremely* good reason to!! --&gt;
  &lt;!--&lt;style name="MyOverflowButton" parent="Widget.Sherlock.ActionButton.Overflow"&gt;
      &lt;item name="android:src"&gt;@drawable/ic_menu_view&lt;/item&gt;
      &lt;item name="android:background"&gt;@drawable/action_button_background&lt;/item&gt;
  &lt;/style&gt;--&gt;
  </code></pre>