What colors do Norfolk Terriers come in?

According to the official Kennel Club Breed Standard, Manchester Terrier's should be:

''Jet black and rich mahogany tan distributed as follows: on head, muzzle tanned to nose, nose and nasal bone jet black. Small tan spot on each cheek and above each eye, under-jaw and throat tanned with distinct tan V. Legs from knee downward tanned with exception of toes which shall be pencilled with black, a distinct black mark (thumbmark) immediately above feet. Inside hindlegs tanned but divided with black at stifle joint. Under tail tanned, vent tanned by marking as narrow as possible so that it is covered by tail. A slight tan mark on each side of chest. Tan outside hindlegs, commonly called breeching, is undesirable. In all cases black should not run into tan or vice versa, but division between colours clearly defined.''