abstract backdrop background cardboard color colors colour colours corrugated corrugations gray grey light lines off-white paper paper-thin patterned ribbed ribbing shadows sheet smooth storage surface surfaces texture textures tone tones white brown cushion grid protection wrap ba1969 buttons grunge vintage button retro round variations box concept copyspace Dirt graphic grungy old packing packing box parchment pink realistic scrapbooking smudge wrinkles blue sepia