title: Uno Button Change pressed color
body: <p>I have a button that when it is currently pressed it changes to a grey background and any text turns black.  I would like to change this to another color- but I have not been able to figure out how to do it.  In my app- I am only creating a IOS and Android version.  When I test this code in a separate UWP app- it works.  In the UWP app- ButtonBackgroundPressed and ButtonForegroundPressed change the color when pressing the button.  My goal is only to change the color when it is pressed/tapped.  However when I apply it to my app- nothing happens.  The background and foreground change to the colors mentioned above.  What am I missing here?</p>
  <pre><code>Xaml:
  &lt;Button x:Name=&quot;testButton&quot; Background=&quot;{StaticResource appBackground}&quot; &gt;
  &lt;/Button&gt;
  
  ResourceDictionary:
  &lt;SolidColorBrush x:Key=&quot;ButtonBackgroundPressed&quot; Color=&quot;Blue&quot;/&gt;
  &lt;SolidColorBrush x:Key=&quot;ButtonForegroundPressed&quot; Color=&quot;White&quot;/&gt;
  
  </code></pre>