Painting Painting terms. P.M., Melbourne, FL gel medium masking fluid matt mediums opaque watercolors pigments transparent watercolor texture paste varnish wet-into-wet alizarin crimson anthraquinone red black bristle brushes brown burnt sienna burnt umber cadmium orange cadmium red cadmium yellow canvas casein cerulean blue charcoal gray Chinese white clove oil cobalt blue cobalt green cobalt violet color index complementary colors color wheel copper oxide cross-hatching Davy's gray direct painting dry-brush technique earth tones enamel colors eraser exhibit fan blender filbert brush fixative flat brush framing French ultramarine galleries gamboges gel medium gesso glass gloss medium