title: How to set TabLayout background to transparent
body: <p>I need to change TabLayout (extending HorizontalScrollView) background to transparent without changing primary color from styles. 
  If I set a background to #00000000 it becomes primaryColor. If I set alpha to 0 - I get the same behavior. </p>
  
  <p><a href="https://i.stack.imgur.com/Elg2L.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Elg2L.png" alt="enter image description here"></a></p>
  
  <pre><code>&lt;android.support.design.widget.TabLayout
          android:id="@+id/tabs"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:background="#00000000"
          android:hapticFeedbackEnabled="true"/&gt;
  </code></pre>
  
  <p>Is there any way to set background color transparent without changing styles colors?</p>