title: How to set Floating Action Button image to fill the button?
body: <p>Usually icons are set for floating action buttons, but I need to set an image, so I can make a circular image.</p>
  
  <p>I added it to the project (using Android Studio-> New -> Image Asset), but the image didn't fill the entire button:</p>
  
  <p><a href="https://i.stack.imgur.com/N40vVm.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/N40vVm.jpg" alt="enter image description here"></a></p>
  
  <p>My xml:</p>
  
  <pre><code>&lt;com.github.clans.fab.FloatingActionMenu
      android:id="@+id/run_menu"
      android:layout_alignParentBottom="true"
      android:layout_alignParentRight="true"
      android:paddingBottom="@dimen/activity_horizontal_margin"
      android:paddingRight="@dimen/activity_horizontal_margin"
      android:visibility="visible"
      fab:fab_colorNormal="#DA4336"
      fab:fab_colorPressed="#E75043"
      fab:fab_colorRipple="#99FFFFFF"
      fab:fab_shadowColor="#66000000"
      fab:fab_showShadow="true"
      fab:layout_constraintBottom_toBottomOf="parent"
      fab:layout_constraintHorizontal_bias="0.0"
      fab:layout_constraintLeft_toLeftOf="parent"
      fab:layout_constraintRight_toRightOf="parent"
      fab:layout_constraintTop_toTopOf="parent"
      fab:layout_constraintVertical_bias="0.0"
      fab:menu_backgroundColor="#ccffffff"
      fab:menu_fab_label="Choose an action"
      fab:menu_labels_colorNormal="#333333"
      fab:menu_labels_colorPressed="#444444"
      fab:menu_labels_colorRipple="#66FFFFFF"
      fab:menu_labels_ellipsize="end"
      fab:menu_labels_maxLines="-1"
      fab:menu_labels_position="left"
      fab:menu_labels_showShadow="true"
      fab:menu_labels_singleLine="true"
      fab:menu_openDirection="up"
      android:layout_height="0dp"
      android:layout_width="0dp"&gt;
  
      &lt;com.github.clans.fab.FloatingActionButton
          android:id="@+id/shop"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:src="@mipmap/store"
          fab:fab_label="Store" /&gt;
  
  &lt;/com.github.clans.fab.FloatingActionMenu&gt;
  </code></pre>
  
  <p>Any ideas on how to fix it? How should it be properly made?</p>