bright purple and black wavy background with retro futuristic seamless pattern. vapor wave, synth wave, retro wave

abstract backdrop background beauty black blue bright chaos christmas curve decoration design doodle dynamic effect elegance energy fabric fantasy fashion flowing future futuristic generative geometric geometrical girlish green illustration line liquid magical material mosaic motif motion neon ornament ornate party pattern psychedelic purple repeat repetition retro seamless shape splash stain summer surface swirl synth textile texture tribal vapor wallpaper wave wavy yellow