The phrase '二展示色彩设计图片' refers to 'Two display color design pictures,' which could be a description of a collection or a set of images showcasing various color design concepts. Color design is a crucial aspect of graphic design, interior design, and fashion, where the use of colors is essential to convey emotions, create moods, and enhance visual appeal. In graphic design, color theory involves understanding color relationships, color harmonies, and color psychology to effectively communicate messages and brand identities.