title: Invalid Image Asset -Top Shelf Image - must be opaque
body: <p>I am getting <code>ERROR ITMS-90497</code>, <code>Invalid Image Asset -Top Shelf Image - must be opaque</code>, when using this image:</p>
  
  <p><a href="https://i.stack.imgur.com/xXJzm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/xXJzm.png" alt="yellow image"></a></p>
  
  <p>I'm testing with this image to get it working and trying to upload a tvOS application to TestFlight.</p>