air brush art paper brush camera lucida camera obscura canvas chalk charcoal chromogen clothes-drier coat coat of paint coating color color filter color gelatin colorant coloring crayon dead-color dehumidifier dehydrant dehydrator desiccative desiccator distemper drawing paper drawing pencil dye dyestuff easel evaporator exsiccative exsiccator exterior paint fixative flat coat flat wash floor enamel ground interior paint lay figure maulstick medium opaque color paint paintbrush palette palette knife pastel pencil pigment pigments prime coat primer priming scratchboard siccative sketchbook sketchpad spatula spray gun stain stump tempera thinner tinction tincture transparent color turpentine turps undercoat undercoating varnish vehicle wash wash coat