art paper background mold moldy texture backdrop copy space fill fill space filler overlay paper brick brick pile bricks brown building material mortar pile used blue gray blue grey citrus citrus fruit danger dangerous deterioration discoloration food fruit fungi growth lemon mottled mould mouldy off raised rotten rotting surface unhealthy yellow ancient banner beige canvas crumbling decay dirty fabric grunge grungy grungy canvas isolated old parchment pirates rough stained stains tears torn vellum worn blank burlap cloth copy embroidery furnishings hessian jute sackcloth weave woven bad blue-gray blue-grey discolor discolour growing orange skin Antiques blue bottles glass treasure