background erode erosion gouge grunge industrial industry metal old oxidation oxide paint rust scratch surface texture wabi sabi wabisabi wear worn abandoned broken broken truck decay foliage green foliage obsolete Old truck plants rusty rusty metal rusty texture rusty truck truck audio broadcast close close-up diagonal grey grid grill holes loudspeaker macro mesh music shadow silver sound Speaker tv abstract appearance architectural architecture barrier building color colour corrugated corrugations elements external galvanised galvanized perspectives raised rounded smooth strength strong surfaces textures variations wall aged aging brown chemical corroded corrosion damage damaged dirty distressed ferrous frame grungy iron metallic peel peeling pitted plate reaction red retro rough rusted scrap stain stained steel urban weathered weathering alien astronomy atmosphere backdrop concept creation deathstar fantasy fiction flight fly future futuristic graphic modern orb orbit planet reflections render robotic satellite sci-fi science science fiction shiny skies sky space spacecraft sphere spiky time travel UP vector bump map diamond plate diamondplate non-skid San Francisco sidewalk lensflare city colors dark design Dirt jazza pattern plates rural sheet speckled textural textured urban decay