title: Android Floating Action Button Semi Transparent Background Color
body: <p>I want to use FAB with semi transparent background color.
  But I am getting a FAB with two different colors. What's the problem?</p>
  
  <pre><code>&lt;android.support.design.widget.FloatingActionButton
      xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_gravity="bottom|left"
      android:fadingEdgeLength="5dp"
      app:borderWidth="0dp"
      app:elevation="4dp"
      app:backgroundTint="#99f03456"
      app:fabSize="normal"/&gt;
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/MXsO2.png" rel="noreferrer"><img src="https://i.stack.imgur.com/MXsO2.png" alt="enter image description here"></a></p>
  
  <p>And without any drawable.</p>
  
  <p><a href="https://i.stack.imgur.com/eKLw5.png" rel="noreferrer"><img src="https://i.stack.imgur.com/eKLw5.png" alt="enter image description here"></a></p>