Lieutenant Green about all aspects of Spectrum, and used to work for the United Nations. Green is attracted to Captain Blue. At the end of the episode 'Proteus', she is offered a promotion to the rank of captain but elects to remain a lieutenant. During a UK repeat run in 1993, "Captain Scarlet and the Mysterons" became the subject of discussion regarding black-and-white dualism for its use of the codenames "White" (to designate the benevolent commander-in-chief of Spectrum, Colonel White), and "Black" (to designate the villainous Captain Black). Series creator Gerry Anderson responded to accusations of political incorrectness and racial stereotyping by
Blue–green distinction in language being described. For example, "blue" and "green" might be distinguished, but a single term might be used for both if the color is dark. Furthermore, green might be associated with yellow, and blue with black or gray. According to Brent Berlin and Paul Kay's 1969 study "", distinct terms for brown, purple, pink, orange and grey will not emerge in a language until the language has made a distinction between green and blue. In their account of the development of color terms the first terms to emerge are those for white/black (or light/dark), red and green/yellow. The word for blue