abstract architectural architecture backdrop background barrier building color colored coloring colors colour coloured colouring colours corrugated corrugations elements exterior external firm linear lines metal multicolored multicoloured perspectives raised rounded secure security smooth strength strong style surface surfaces texture textures variations wall appearance black blended blue colorful colourful decorative design details geometric geometrical interconnected interwoven light lined patterns purple ribbed ribbing shape shaped shapes striped stripes textured thick thin vibrant wallpaper checks connected connections horizontal interlinked mandala mat vertical angles chips close-up concrete conglomerate crack dividing-line drive driveway gray green grey groove growth life line macro mixed mixture moss moss-covered moss-growth plants rocky rough solid sprouting straight artistic brown checkered detailed edges edging interlaced intermeshed intertwined intricate linked mosaic tiled weave woven layered links pizza-like pink star stary red square squared squares white