This is any representation of shading; often it appears as an area of graduated parallel lines in Chinoiserie scenes.
The genre for this stylistic element depends on a combination of decorative technique, color, and element.
Cataloging Example for Depicted Sherd:
|Interior/Exterior||Location||Decorative Technique||Color||Stylistic Element||Motif|
|Interior||Proximal Rim||Painted, under free hand||Purple-Blue, Muted Dark||Shading||Individual A|