abstract appearance background color colored colors colour coloured colours external fired glazed glazing hard layered layers lumps lumpy molten pottery rough surface surfaced surfaces surfacing texture textured textures thick thin backdrop brush brushstroke brushstrokes decoration decorative desktop orange structure structures wallpaper shapes cook cooking couscous food grain healthy nutrition organic wheat yellow backhand blue canvas fabric fiber forehand jersey pattern raw woven wrinkled brown ivy old rock rocks solid stone stones wall green pastel regular stripes vertical wave-shaped waves blinds horizontal lamellae light painted shiny wood wooden