abstract angles backdrop background blue carpet-underlay carpeting color colored colors colour coloured colours decorative design details geometric geometrical interconnected intermeshed interwoven light linear lines patterns perspectives rubbery shape shaped shapes soft spongy style texture textured textures underlay vibrant wallpaper zigzag appearance binding bound brown carpet diagonal floor floor-paper flooring lined lining paper patterned protection protective ribbed rows stitched stitches stitching surface surfacing