Information: Colors and Markings
The Whole Main Colors: 

1. White
2. Greys to Black - from light to dark 
3. Browns - from light to dark 
4. Light Grey 
5. Musket - light greyish-brown 
6. Emsket - dusky bluish-grey
7. Fawn
8. Shaela - dark steely-grey 
9. Mioget - light moorit (yellowish-brown) 
10. Black
11. Moorit - between fawn and dark reddish brown 
12. Dark Brown 

Shetland Markings:

Bersugget -  irregular patches of different colors, irregular in nature 
Bielset -  a complete band of different color circling the neck
Bioget -  either a white or dark back, with sides and belly of an opposite color
Blaeget -  wool color that goes from dark to light from the skin to the tips
Blaget -  white base color, spotted with peppering of dark spots
Blettet -  head marked with white spots on nose and top of head
Bleset -  either dark stripe with light background, or opposite down the forehead
Brandet - stripes of another color across the body
Bronget -  chest color lighter than dark body, or the opposite
Flecket -  white body with large patches of darker color ("Holstein looking")
Fronet -  body with black spots with white head and black patches around the eyes
Gulmoget -  dark body with light colored legs, belly, and up the chest
Ilget -  white with different colored spots
Iset -  dark color wool with lots of white fibers throughout
Katmoget -  light colored body wool with dark belly an legs and moget face  
Katmollet -  head marking of light colored nose and jaws
Kraiget -  neck is a different color from the rest of the body
Kranset -  face marking with dark base wool and white around eyes and neck
Krunet -  dark colored face with white patch on top of the head
Marlit -  entire sheep is multi-colored throughout the body, legs, neck and head
Moget -  patches of either light or dark wool around the eyes, mouth and ears
Mirkface -  face marking, white with dark patches
Mullit -  white with dark nose and jaws or the opposite
Sholmet -  colored wool throughout with all white face 
Skeget -  stripes of different color on the side of the animal
Smirslet -  dark base wool color with white wool around the face head and neck
Sokket -  the legs are a different color than the body
Sponget -  light or dark colored base wool with small spots in the opposite color
Snaelit -  light colored body wool with a white face
Yuglet - dark or light colored body with opposite colored patches around the eyes.