abstract architectural background barrier colors colours constructed decorative distinctive edged edges exterior external fancy fitted fitting flat gaps interconnected interlinked light linear lined lines patterns perspectives rectangular secure security shaped shapes slabs smooth stone stonework strength style surface surfaces textured textures thick thin uneven variation varied various wall wallpaper appearance Designs details distinct mosaic rough tiled tiles agate artistic backdrop blended bright brown color coloration colored colour coloured contoured contours design intermeshed layers marble marbled marbling motley mottled shape surfaced surfacing swirling texture vibrant