title: How to add such large icon to the Android notification?
body: <p>I have such design of notification for the latest Android P
  <a href="https://i.stack.imgur.com/7odH6.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7odH6.png" alt="enter image description here"></a></p>
  
  <p>For this notification I need to add blue user icon on the right hand. Could you tell me how to achieve this? Is it possible to make with one of the setter methods of NotificationBuilder? I need to write custom layout for this notification?</p>