abstract art backdrop background blend burst color colorful colors colour colours grunge grungy paint painting paints rustic series variation variations ball button graphic illustration marble reflection rotate rotation round shape sphere spin twirl twirls canvas circles dot dots halftone pastel pastels pattern rough texture brush marker marks stroke strokes textures cloth copyspace experimental fabric gradient appearance art-glass artistic blended bright coloration colored coloured colourful contrast craftsmanship decorative distinctive exterior firm form glass glass-bricks light lined lines modern patterned patterns perspectives shaped shapes solid squares style surface surfaces surfacing textured thick vibrant wallpaper window