Agreater percentage of films noirs were written by american screenwriters whose original scripts were heavily influenced by the of proletarian, tough-guy writers of the 1930s and 1940s.

Hard boiled style

Explanation:

A greater percentage of films noirs were written by American screenwriters whose original scripts were heavily influenced by the Hard Boiled Style of proletarian, tough-guy writers of the 1930s and 1940s. The hardboiled genre's characteristics is to be about crime and usually the protagonist is a detective, and an anti hero who has to deal with corruption and organized crime during the times of the prohibition.

yellow and blue because thats what i remember, im not sure tho