title: How to change a Dialog's background overlay color
body: <p>I want to change the overlay color of a dialog. The first which comes as transparent gray.</p>
  
  <p>I tried:</p>
  
  <pre><code>&lt;item name="android:windowContentOverlay"&gt;@color/customColor&lt;/item&gt;
  &lt;item name="android:colorBackgroundCacheHint"&gt;@color/customColor&lt;/item&gt;
  </code></pre>
  
  <p>They did not work. When I tried:</p>
  
  <pre><code>&lt;item name="android:windowBackground"&gt;@color/customColor&lt;/item&gt;
  </code></pre>
  
  <p>The content background is changing.</p>