Yep.. It's an amazing thing! Some go Blue, Some black.. they are yorkies after all.. but the faces seem to clear.. I don't see too many that stay very vibrant but some do.
If there is white, that will stay white, if the coat turns Blue, the faces, of course, turn "mellower" if they have a black coat.. they may keep a bit "stronger" color in the face, a deeper "gold" or tan.. but whatever happens, you'll soon find that the COLOR, although it is striking, is not the most important thing.. you'll just be in LOVE with that little dickens.. and it really won't matter what's on that face!!
Hope you enjoy your new pal.
Diana