title: Apple Watch: Is there a native way to add "color stripe" on the left side of a "WKInterfaceGroup"
body: <p>I know this question may seem odd, but I seen this youtube video that has exactly what I want. Basically in the video it shows a "WKInterfaceGroup" that has a color stripe on the side. I am wondering if there is a native way of doing this? If not, what would be the best way to achieve this? I assume adding an image.</p>
  
  <p>Please check the youtube video at 0:33 to see what I mean.</p>
  
  <p><a href="https://www.youtube.com/watch?v=tn3u9rb2x4Y" rel="nofollow noreferrer">https://www.youtube.com/watch?v=tn3u9rb2x4Y</a></p>
  
  <p>and here is an image I've seen on google to demonstrate what I want.</p>
  
  <p><img src="https://i.stack.imgur.com/kgRmw.png" alt="enter image description here"></p>