acid psychedelic checkerboards with seamless pattern with warped grid tile, spirals and twirls

psychedelic retro pattern checkerboard grid background vector poster chessboard swirl line wave seamless acid square warp colorful geometric y2k print twirl groovy spiral design art graphic trippy tile cover funky distorted wavy abstract 60s checker warped board optical chess 90s surreal illustration 70s gingham hippie illusion vintage playful effect textile