Business template for brochure, flyer or booklet. Abstract multicolored background with bokeh lights and stars. Vector 3D pyramid, scientific digital design, science vector illustration 宣传册、传单或小册子的业务模板。抽象多彩背景与散景灯和星星。矢量 3d 金字塔，科学或数字设计，科学矢量图