abstract angled angles appearance background black blended color colored colorful colour coloured colourful contrast contrasting dark decorative design details ethnic geometric geometrical gold interconnected interwoven light linear lined lines mosaic pattern patterned patterns perspectives red shape shaped shapes style texture textured textures thick thin vibrant wallpaper brown corrugated curtain curve curved curves distinctive interlinked round rounded surface surfaces bright bubbles checks circles circular purple green square squared fiery glass glassy liquid liquidy metallic molten rows silver silvery spiral spiraling transparent bubbly chained chains flowers flowery petals rust rusty golden architectural architecture barrier basic brick brick-wall bricks brickwork building cement colors colours exterior external firm mortar perspective rough secure security smooth solid standard strength traditional-brick-wall variation varied various wall