red and yellow 50s, 60s popart background pattern.

1950s 1960s andy artistic background blank cartoon circle classic comic dots dotted fashion fleck free half halftone illustration lichtenstein pattern pointillism pointillist polka polkadot polkadots popart repeatable repeti repetitive retro royalty scrapbook seamless speckles spot spots stipple style texture title tone vector wallpaper warhol warhole yellow