set of holographic gradient background. abstract retro furistic cover set. 90s, 80s style for brochure, banner, flyers

color gradient fluid holographic background modern cover liquid design vector minimalist pastel colorful geometric wallpaper style summer cute spectrum frame media social texture hologram trendy neon graphic pattern template 90s 80s art collection vivid shape illustration minimal flyer digital tech radiant banner trend blend vintage pearl card metallic set web