4. The method of claim 3 , wherein determination of color-to-color distances comprises: a first determination of a first closest color of the color theme of the collection to a first color of the identified color theme, the first determination comprising comparing the first color of the identified color theme with each color of the color theme of the collection; and a second determination of a second closest color of the color theme of the collection to a second color of the identified color theme, the second determination comprising comparing the second color of the identified color theme with each color of the color theme of the collection except the first closest color.
3. The method of claim 1 , wherein the distance of each color theme of the collection of color themes from the identified color theme is based at least in part on determination of color-to-color distances of each color of the identified color theme to a color of the color theme of the collection, wherein each color-to-color distance uses a different color of the color theme of the collection.