Welcome to the forum. I'm sure someone here will be able to tell. I do know that dogs coloring tends to change as they get older. I had a cockatoo that was all white with about 3 or 4 big black spots. As he matured, his black spots multiplied, in all sizes! And with Angel, I can see more colors coming out in him. But then, my golden hasn't changed at all!
Well, sorry to hear about your daughter. It must be very hard. But, now she has a beautiful little puppy to care for. Sometimes they work miracles!