Actually the odd or wrong colours have existed all this time. No it is not the result of bad breeding they do pop up although rarely as most breeders of the past have been careful if any did show up in a litter, to be sure they were spayed/neutered and not used in a breeding program.
Yorkies weren't meant to come in all sorts of colours. The colours you normally see can be various shades from a black and gold or tan to a light silver and gold. The ideal of course, is the breed standard colour which reputable breeders strive for.
The difference now compared to when you were in Yorkies is that some have decided these miscolourings are rare and therefore of increased value, some will actually try to breed for them. In reality they are totally wrong colouring that still exists in the breed and can show up and should be avoided not just because of the colour but often a 'rare' colouring carries a health problem along with the genes that causes these rare colours..

I think the reason I did not see or hear of any other color than standard back then is bacause we were so careful back then to keep to the standard. We spent hours upon hours researching and looking at other litters and yorkies it was a true science then that most of us practiced. Yes, I am sure that wrong or odd colors did happen back then, just not like they do today. I see many, not all, breeders like the one mentioned on this post that do not research and learn about the breed before breeding.
I think that what has happened today is that many/some do not study the standard or learn all they can about their own yorkies (lines or quality/faults)
and just want to have pups, whether it is the "lets have cute puppies" symdrom or "lets make some money."
When a breed becomes popular - the standard tends to decline for awhile, such as what happened to toy poodles and some other breeds as well in the past. It takes many years to recover.

Noticed I said most or many - which can be some, but not all. I congratulate all the ones that do their homework before breeding. And are careful and selective. Only with these type of breeders can our breed standard improve and continue.

I hate to say this but believe it to be true that - back in the past - if any undesirable pups were born breeders would put them down soon after birth (that day). Maybe this is why we did not see any.

I wouldn't trust them at all

AW that makes me sad:(

I would be aware of her! I guess if 7lbs is a teacup then I have a teaspoon lol

If she is in the US then she is talking about CKC Continental Kennel Club not the Canadian one that is the CKC, Canadian Kennel Club. A dog or puppy registered Canadian Kennel Club can be registered with the AMerican kennel Club. I have some of mine registered AKC as well as my Canadian Kennel Club.
If you reside in the US you can buy a dog from Canada from a reputable breeder and it will be Canadian Kennel Club registered. You can submit the required paperwork including the Canadian Kennel Club registration and get the dog or puppy AKC registered.
A litter born in the US must be AKC registered it cannot be registered Canadian Kennel Club without the AKC registration being done first including the individual dog registrations.
But Continental Kennel Club is not recognized by AKC or Canadian Kennel Club either. Neither will register a puppy or dog that is only Continental Kennel Club registered it would have to be AKC or Canadian Kennel club registered