title: CAB overflow menu custom style
body: <p>In my application I am showing a contextual action bar and because I don't have room for all the actions, some of them are accessed under the overflow menu button. Now I want to style the overflow menu and change its background. My theme inherits from Theme.AppCompat, and I have these styles defined:</p>
  
  <pre><code>&lt;item name="android:popupMenuStyle"&gt;@style/PopupMenu&lt;/item&gt;
  &lt;item name="android:listPopupWindowStyle"&gt;@style/PopupMenu&lt;/item&gt;
  &lt;item name="android:dropDownListViewStyle"&gt;@style/DropDownListView&lt;/item&gt;
  
  &lt;style name="PopupMenu" parent="Widget.AppCompat.PopupMenu"&gt;
      &lt;!--&lt;item name="android:popupBackground"&gt;@color/dark_color&lt;/item&gt;--&gt;
      &lt;item name="android:textColor"&gt;?android:textColorPrimary&lt;/item&gt;
      &lt;item name="android:dropDownSelector"&gt;?popupItemBackground&lt;/item&gt;
  &lt;/style&gt;
  
  &lt;style name="DropDownListView" parent="Widget.AppCompat.ListView.DropDown"&gt;
      &lt;item name="android:listSelector"&gt;?popupItemBackground&lt;/item&gt;
      &lt;item name="android:divider"&gt;@null&lt;/item&gt;
      &lt;item name="android:dividerHeight"&gt;0dp&lt;/item&gt;
  &lt;/style&gt;
  </code></pre>
  
  <p>The other menus in my application (overflow menus in action bar and other) are styled, but the contextual action bar's overflow menu is not. What should I do? </p>