title: Custom elements in watchkit
body: <p>I was reading Apple Watch Human Interface Guidelines and i'm curious if there is any way in displaying custom UI elements, other than those provided by default by Apple (like tables, buttons or labels). How did they managed to do this: <img src="https://i.stack.imgur.com/r14wV.png" alt="enter image description here"></p>
  
  <p>Did they use images? </p>