COLORED BUTTONS FOR HALL OF FAME 2 X 4 REVERB PEDAL

Hi,  I just ordered a Hall of Fame 2 X 4 Reverb Pedal (TC Electonic).  On their YouTube video they show Colored Buttons that cover the (4) Bottom Push (MASH) Knobs.  Not only do they look great, but I can see that it would make using the pedal easier.  Can some one (Please) tell me where I can piuchase them, I'm not having a lot of luck so far.  THANKS