Similar to how you you can turn on the visibility of your dragger handles, there are times when I'd find it helpful if my sticks showed up green on the stage so I could troubleshoot their placement. When the legs or arms are warping in ways I don't like, the solution is often to trial-and-error move those sticks around and find the perfect sweet spot. I think I might be able to pinpoint what part of the stick is influencing the mesh in an ugly way if I could see the sticks while the puppet's moving.