abstract angles appearance background brown brush strokes coated coating color colored colors colour coloured colours grooved grooves heavy lines paint painted rough streaked streaks surface texture textured textures thick treatment wallpaper brush stroke cheap grunge messy stain stained wall backdrop canvas grungy hue painting series shade tone tones blended colorful colourful connected connections contoured contours contrast contrasting decorative design details interconnected interlaced interlinked intermeshed interwoven light multicoloured patterned patterns perspectives shape shaped shapes style surfaces surfacing swirling swirls thin vibrant