My wife and I both got new boots recently. Last night, when my Dalton's arrived, I wasted no time in conditioning them. I asked my wife if she'd like me to do the same to hers and she agreed. br> However, her boots have an undressed stacked leather heel and in a few spots, the conditioner came into contact with it, darkening those spots. Before it is suggested to simply condition the entire heel, she likes the contrasting color of the dark boot and light heel. Will this fade? Is there anything I can do to get it back to the original color?