square psychedelic checkerboards, groovy checkered seamless pattern with distorted grid tile

retro pattern checkerboard psychedelic background seamless groovy grid y2k distorted vector funky square pink checker trendy chessboard cute wavy board spiral abstract 70s doodle line vintage geometric trippy graphic cover swirl twirl print playful design poster 90s wave texture modern pastel wallpaper tile illustration gingham 60s chess hippie surreal template