How to set the design theme of ppt document as dark fragrance? We often encounter a product interface, and we need to make some pictures at the bottom of this product interface, so as to locate the product intuitively and make it easy for us to identify. When we add our products to our product list, we can know whether our products have our product demand. If not, we can show our products in this product list. Through this setting, we know that if a product does not exceed its credibility, it needs to be replaced, but the simplest thing is to add the user list of this product to our product list. If we add our product list to our product list, we can know whether there are any users. They may have been added from our product list.