color screentone; color mechanical tint
A sheet of adhesive film with a printed pattern or texture, used in manga and illustration to add color or shading effects. The term is a wasei-eigo compound from 'color' and 'tone'.
The manga artist finished the background by applying color screentone.
This color screentone can produce a watercolor-like texture.
Wasei-eigo from English 'color' + 'tone', referring to colored adhesive screentone sheets used in manga and illustration.