This chiefly consists in painting scrolls, figures, or other enrichments on plain work, so as to give them the appearance of relief or projection; it is most commonly done in the corners and margins of panels. The ornaments or enrichments to be painted are usually sketched on paper, and the outlines are then pricked through with a needle point. This paper is to be laid on the wall or work on which the ornament is to be painted, and pounced over with a charcoal pounce-bag; the charcoal dust, passing through the small holes in the paper, will leave a faint tracing of the outline of the ornament on the work, and serves as a guide to paint it by. The brushes used are camel or sable-hair pencils, with long hair; and a rest-stick is held in the left hand, to steady the right hand by; also a palette, to work the colour from, the same as is used by artists generally. If the colour of the ornament is to differ from that of the ground on which it is painted, the pounced outline should first be filled up, and, when that is dry, the shades put in; but when the ornament is to be of the same colour as the ground, it will only be necessary to put in the shades, by the assistance of the pounced outline.
As soon as the first shades are dry they may be heightened, and a stronger relief given to the ornament.