Spriter's Alts are special colourations of dragons exclusively owned by the artists of the species. Unlike normal alts, which gain their change upon drinking a potion, spriter's alts are born alted, thus their hatchling stages are alted as well if the sprite exists.
Spriter's alts, as their name suggests, cannot be obtained by any other players, including other artists and staff, unless the spriters choose to trade them. The alted Jingle Bell Dragon was an exception, as the spriter held a contest in the forums with spriter alts as one of the prizes, though only adult forms were available.
Originally any dragon in dragon requests could be have a spriter's alt, but that privilege is now restricted to holiday, event and donation breeds. A concept alt is a rarer occurrence, issued to the concept creator of the breed even if they had no part in the sprites themselves.