Not supposed to have to do anything to them, sounds like not very good quality dye or maybe what came off is just the excess they failed to wipe off. Wipe of what you can, maybe wax the scales and see what's left. Dye color rarely goes all the way through bone anyway. After the excess is off and if what's left looks good you'll need to do any required sanding from the back side to protect the coloring on the jigged side ....
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