I took one look at the picture and laughed out loud.
I raised mini schnauzers for 35 years. I even had a breeding pair for a few years.
I have never had or see a single puppy that came out with black and white (like a holstein cow) markings, or gray with black spots (like an Aussie Shepard), the entire litter is the combination of the two.
These people were asking $400 a piece for these 'purebred' dogs.