White heightening
White heightening is the name given to the highlighted lights in a drawing or in painting on a colored background.
White heightening is mainly used in colored drawings, or to emphasize something on tinted paper , as well as in painting when the color is applied in layers. White heightening has been used since the Renaissance , and Dürer in particular made use of them in his drawings.
White heightening takes place on a tinted or colored background, such as construction paper . In the drawing, heightening is done with a white chalk , white paint or with a white pencil . A pre-treatment of the paper is not necessary.
In egg tempera painting , in which the paint has to be applied in many layers with a glaze , white heightening is also made between the individual layers of paint, which increasingly darken the surfaces , which are usually done in white hatching with a pen or a fine brush .