title: Make Notification Large Icon Round
body: <p>I want to display a circular avatar from the user's contacts as the large icon of the notification - like when receiving a text or mail. When I set the large icon as that contact's image, it results in a square icon.</p>
  
  <p>I'm looking to turn something that looks like the top icon (the square avatar), look like the large icon on the email notification (the round avatar):</p>
  
  <p><img src="https://i.stack.imgur.com/g3RjZ.jpg" alt="enter image description here"></p>
  
  <p>How do I make it round?</p>