title: Grey background for ?attr/selectableItemBackground after support library update
body: <p>I've update support library to <strong>23.2.1</strong> and discovered that many items got the grey background.</p>
  
  <p>After an investigation, I found that we explicitly define background like <code>?attr/selectableItemBackground</code>. I suppose the issues are in support library, or we use it in a wrong way.</p>
  
  <p>Here is layout for explicit background definition:</p>
  
  <pre><code>&lt;LinearLayout
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:background="?attr/selectableItemBackground"
      android:orientation="vertical"&gt;
  
   ...
  </code></pre>
  
  <p>Here is common part of our theme:</p>
  
  <pre><code>&lt;style name="AppTheme" parent="Theme.AppCompat.NoActionBar"&gt;
      &lt;item name="android:splitMotionEvents"&gt;false&lt;/item&gt;
      &lt;item name="android:windowBackground"&gt;@color/primary_dark&lt;/item&gt;
      &lt;item name="colorPrimary"&gt;@color/primary&lt;/item&gt;
      &lt;item name="colorPrimaryDark"&gt;@color/primary_dark&lt;/item&gt;
      &lt;item name="colorAccent"&gt;@color/accent&lt;/item&gt;
  
      &lt;item name="divider"&gt;@color/divider_dark&lt;/item&gt;
      &lt;item name="icon"&gt;@color/icons_dark&lt;/item&gt;
  
      &lt;item name="android:textColorPrimary"&gt;@color/text_color_light&lt;/item&gt;
      &lt;item name="android:textColorSecondary"&gt;@color/white_transparent_50p&lt;/item&gt;
      &lt;item name="android:textColorPrimaryDisableOnly"&gt;@color/disabled_text_dark&lt;/item&gt;
      &lt;item name="android:textColorHint"&gt;@color/hint_text_dark&lt;/item&gt;
  
      &lt;item name="android:divider"&gt;@color/divider_dark&lt;/item&gt;
      &lt;item name="android:icon"&gt;@color/icons_dark&lt;/item&gt;
  
      &lt;item name="drawerArrowStyle"&gt;@style/DrawerArrowStyle&lt;/item&gt;
  &lt;/style&gt;
  </code></pre>