bright color background with mesh gradient texture for brochure, leaflet, flyer, cover, catalog. blue, pink, yellow, green placard

abstract annual background banner blue book branding bright brochure card catalog color cool cover design dynamic element flat flayer flyer folder future geometric geometry gradient graphic green halftone hipster identity illustration layers leaflet line mesh minimal minimalist modern orange page pattern pink placard poster report set shape simple template texture title trend trendy vector yellow