Red specks in hydrocodone?

I recently had my norco (5/325) refilled generically at a new pharmacy, and the pills i received are from watson pharmaceuticals and they are imprinted 'watson 3202'. the pills themselves are white, but they also have reddish-orange specks randomly throughout. I'm just curious as to what these specks are for? Some thoughts i came up with are, something to perhaps deter abuse, or a brand identifier or something of that nature but i would just like to be certain. Thanks!