colourist
/ˈkʌlərɪst/( <美> colorist)
noun
1- an artist or designer who uses colour in a special or skilful way色彩画家, 色彩设计家。
1.1
- a person who tints black-and-white prints, photographs, or films（印刷物、照片或胶卷的）着色师。
1.2
- a hairdresser who specializes in dyeing people's hair染发师。