abstract arty backdrop background blend brown city decay decoration design desktop graphic gray grunge grungy illustration light lines metal pattern random render shapes shine tech texture urban wallpaper 3D architecture cement concept fill floor grey image mosaic old pavers paving scrapbooking scratched stones tiles urban decay wall worn blue green orange yellow angles appearance black colored coloring colors coloured colouring colours jigsaw mixed multicolored multicoloured patterned patterns pieces puzzle puzzles puzzling shape shaped surface surfaces surfacing textured textures colorful colourful red close-up Dirt gravel ground rejected rejects roadside rocky rough scattered stony unwanted