A sheet of clear adhesive material printed with a pattern, which is trimmed to size and affixed to a drawing to create shading and texture effects. Screentone is used much more widely in manga than in American comics, and in Japan there is a vast variety of screentones available.

Screentone is a technique for applying textures and shades to drawings, used as an alternative to hatching. In the conventional process, patterns are transferred to paper from preprinted sheets, but the technique is also simulated in computer graphics. It is also known by the common brand names Zip-A-Tone (1937, now defunctManufacturer-supplied first use date in http://tarr.uspto.gov/servlet/tarr?regser=serial&entry=71456830 USPTO application for Zip-A-Tone), Chart-Pak (1949Manufacturer-supplied first use date in http://tarr.uspto.gov/servlet/tarr?regser=serial&entry=72055435 USPTO application for Chart-Pak), and Letratone (1966, from LetrasetManufacturer-supplied first use date in http://tarr.uspto.gov/servlet/tarr?regser=serial&entry=72322600 USPTO application for Letratone).

A halftone film having a uniform dot size over its area, and rated by its approximate printing dot size value, such as 20%, 50%, etc.; also called Screen Tint. to top