noun
screentone; adhesive mechanical tint
A sheet of adhesive film with printed patterns, used by manga artists and illustrators to add shading and textures to drawings.
漫画家はスクリーントーンを貼って影をつける。
Manga artists apply screentone to add shading.
Variant with interpunct, sometimes seen in product names or older materials.
Borrowed from English 'screentone', a brand name that became a generic term for adhesive shading sheets.