abstract abstract design concrete background design pattern patterns gray stone texture textures urban urban texture architecture concrete cross decay detail gray light urban decay x black black and white black wood city factory old old wood white wood background construction floor grunge grungy marble slab surface wall bolt bolts brown color colors iron rust rusty steel bar teexture cardboard carton paper papers street structure torn font grungy metal metal S scratch scratched metal yellow blue blue paint copyspace frame frameset label old paint painted metal metal plate rusty meta rusty plate rusty texture