Supermarket steel and Wood Shelves generally do not choose stimulating colors, so as not to dominate. However, the color relationship between steel and wood shelves and products takes into account the general color function. For products with bright colors, the color of steel and Wood Shelves shall be gray; For light colored products, the color of steel and wood shelves should be dark; For dark products, the color of steel and wood shelves should be light, and the matching with the product color should play a foil role as the background color.