abstract irregular polygon square background - triangle low poly pattern - full spectrum multi color rainbow vibrant neon

abstract acute art background banner blank bright color colored colorful colour crystal cubism design diamond fraction fractional fragment full geometric geometrical geometry gradient grid illustration irregular low lowpoly mesh modern mosaic multi multicolored neon network origami pattern poly polygon polygonal rainbow shape sharp spectrum square structure tessellated tessellating tessellation triangle triangular varicolored variegated vector vibrant vivid wallpaper