We are planning on getting a Yorkie for our family. I was wondering what to look for when you are looking at the puppies and parents. What is the difference in black and blue? Is the blue they refer to the silver color that some change? We are not planning on showing the dog but want it to be of good health and temperment. We may breed her if we decide we want another Yorkie (seems like when you get one that you want more

), just to have one of her puppies but that would only be it. Any advice would be greatly appreciated.
Thanks