background, pattern, black and white spiral pattern. round centered halftone . triangle, , geometry, center

abstract backdrop background black center circle color curl curve curved decor decoration design element geometric geometrical geometry graphic halftone helix hypnosis hypnotic illustration motion ornament pattern ray rotate rotation shape spiral spiralart spiraldesign spiralgraphic stripe striped swirl swirlabstract swirlbackground swirling texture triangle twirl twist vortex wallpaper whirl whirlpool white