Orson has "patches" of light color black (not really grey)
all over his belly more than when he was a puppy.
Maybe he is just getting his "spots", cause when you get mine wet,
the white parts look like a dalmation!
It's pigmentation, kind of like freckles and normally on the back too (from the sun).
usually happens in fair coated dogs, my friend's brindle pit's white spot on his chest turned speackled gray.
She hates it..