diamond plate diamond sheet grid metal pattern sheet metal texture old red roof rust rusty sheet stain tin wallpaper abstract antislip background bright bump-map diamond-patterned diamond-plate diamond-sheet diamondplate industrial industry light patterned patterns paving reflection reflections reflective sheet-metal shiny silvery surface surfaced surfaces textured textures walkway aluminium grunge messy scratched steel construction diamonds metallic non-skid oxidation oxide paint painted rusted rusting urban weathered worn black montage screw ba1969 grungy papier