title: Rating bar stars don't change
body: <p>In my code I want set my custom stars but it didn't work properly</p>
  
  <pre><code> &lt;RatingBar
                  android:id="@+id/ratingBar"
                  android:layout_width="wrap_content"
                  android:layout_height="wrap_content"
                  android:layout_centerInParent="true"
                  android:numStars="5"
                  android:stepSize="1"
                  android:rating="1"
                  android:progressDrawable="@drawable/rating_bar_color"/&gt;
  </code></pre>
  
  <p>rating_bar_color.xml</p>
  
  <pre><code>&lt;layer-list xmlns:android="http://schemas.android.com/apk/res/android"&gt;
      &lt;item android:id="@android:id/background" android:drawable="@drawable/starw30" /&gt;
      &lt;item android:id="@android:id/progress" android:drawable="@drawable/star" /&gt;
  &lt;/layer-list&gt;
  </code></pre>
  
  <p>I use this code and what I got in result</p>
  
  <p><img src="https://i.stack.imgur.com/11Ep0.png" alt="enter image description here"></p>
  
  <p>Where the lines is coming from. The stars are the same size as default star size. </p>