retro seamless colourful curve pattern from the 50s and 60s. seamless abstract vintage background for textile and fabric use

background decoration decorative futuristic colourful geometric wallpaper seamless abstract artistic backdrop colorful geometry gradient halftone ornament periodic pattern vintage textile organic concept fashion graphic texture fabric banner circle design effect modern mosaic ornate poster repeat retro curve cloth color decor round print shape style vived 50s 60s use art