title: cannot change menu background color
body: <p>I have a problem with a background color of my action menu items. As you can see below I tried to set the same background color as for the toolbar. But they are still different. I use different attributes -- <code>background</code> and <code>itemBackground</code> -- but they both don't work.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;android.support.v7.widget.Toolbar     
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:background="@color/BackgroundToolbarGrey"
      android:contentInsetEnd="0dp"
      android:contentInsetStart="0dp"
      android:itemBackground= "@color/BackgroundToolbarGrey"&gt;
  
      &lt;android.support.v7.widget.ActionMenuView
          android:id="@+id/mainMenu"
          android:layout_width="wrap_content"
          android:layout_height="?attr/actionBarSize"
          android:layout_gravity="left"
          android:background="@color/BackgroundToolbarGrey"
          android:itemBackground= "@color/BackgroundToolbarGrey"/&gt;
  
  &lt;/android.support.v7.widget.Toolbar&gt;
  </code></pre>
  
  <p>And this is my menu.xml file where I also tried to set color:</p>
  
  <pre><code>&lt;menu xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      xmlns:tools="http://schemas.android.com/tools" tools:context=".MyActivity"
      android:background = "@color/BackgroundToolbarGrey"&gt;
  
      &lt;item android:id="@+id/action_settings"
          android:title="@string/action_settings"
          android:orderInCategory="100"
          app:showAsAction="never"
          android:background = "@color/BackgroundToolbarGrey"
          android:itemBackground= "@color/BackgroundToolbarGrey"&gt;
  
      &lt;/item&gt;
  &lt;/menu&gt;
  </code></pre>
  
  <p>I also tried to set it programmatically, but it doesn't help</p>
  
  <pre><code>mainMenu= (ActionMenuView) findViewById(R.id.mainMenu);
  mainMenu.setBackgroundColor(getResources().getColor(R.color.BackgroundToolbarGrey));
  </code></pre>
  
  <p>What can I do wrong?</p>