geometric pixel art seamless pattern. retro arcade game motif geo print. repeated arcs, brackets background

80s 90s abstract arcade art backdrop background blend block bracket bright childish colorful design element embroidery figure folk folkloric game geo geometric geometry kids mosaic motif neon old ornament ornate pattern pentamino pixel print repeat retro retrowave seamless shape staggered structure surface symbol synthwave tile trendy ultraviolet vector violet wallpaper