retro abstract background in rainbow colors. colorful groovy in 70s-80s style. psychedelic wavy pattern.

rainbow wavy background psychedelic hippie abstract funky design vector pattern fun doodle nostalgia lgbt pride distorted curve trippy trendy striped liquid acid colors colourful retro vintage bright art illustration template decoration pop motion composition 70s 80s 60s artwork cover cartoon geometric groovy minimal print palette swirl wallpaper texture backdrop line