Never heard of them, although, on a positive note, the concept of "colour matching" sounds like the kind of fresh and controversial area of debate that can reignite the fora with newfound excitement for years to come.   On the down side, I know a certain testicularly augmented  bespoke shirtmaker and internet fora moderator just aching for a reason to hike his prices, yet again, well past the $1,000 threshold for a shirt and this colour matching thing just might be what he's looking for.