title: Customize macOS menu as Apple do with the Mac AppStore updates notifications
body: <p>How can I code a graphical view as appearing at the right of "App Store..." in the Apple menu (when updates are available in this example) ?</p>
  
  <p><a href="https://i.stack.imgur.com/HhhYh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HhhYh.png" alt="enter image description here"></a></p>