IK Pin visualization

I really love the IK Pinning, it was amazing, but sometime went I forget it was in pin mode(or it is not), and when the animation clip need to switch the pinning mode, I will need to check the whole timeline to make sure the pinning is in the right mode, right now is only possible to click on the transform to check each time.
And I wonder is it possible a way to visualization the transform that is in pinning, changing colors(darker),adding a icon, etc