futuristic seamless pattern with geometric s. isometric 3d objects. purple and blue gradient. retrowave.

1980 abstract ambient background banner blue colorful cosmos decorative design duotone electronic fabric future futurism futuristic geometric geometry gradient hipster holographic illustration isometric light line liquid memphis objects party pattern poster psychedelic purple rave retro retrowave seamless set shape shapes space sphere striped synthwave tomorrow trendy triangle unusual vector vibrant violet wave