soft metallic color/black and white gradient textured background. use for app, postcards, packaging, items, websites and material

abstract aluminum app art background black blank blur blurred blurry bright brushed business color colorblack design elegant empty fame gradient graphic gray grey honor honour illustration iron items light material materialillustration metal metallic modern packaging paper pattern plate postcards premium prestige prime retro shadow shiny silver soft stainless steel surface template texture textured use wall wallpaper websites white