title: Images can't contain alpha channels or transparencies
body: <p>Apple has released new version of iTunes Connect &amp; I got an error message when I tried to set Screenshots on itunes connect for my app.</p>
  
  <pre><code>"Images can't contain alpha channels or transparencies." 
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/D7yIp.png" alt="enter image description here"></p>