What kinds of fillings are the four-color snacks in Shanghai Huang Hotel?

The so-called "four-color ceremony", also known as the four-color ceremony, is a ceremony that the younger generation in Pingliang area pays more attention to their elders. Four colors, that is, four colors or four appearances of gifts. For example, after the engagement, the man will bring four kinds of gifts to his mother-in-law's house for the first time: cigarettes, wine, meat, canned food or fruit, snacks, tea, sugar and other things, and the woman's house will also make up four kinds of gifts for the man to take back. After every important festival, the man will always receive four kinds of gifts when he goes to see his parents-in-law, but there is no need to send them back to the woman's house. If the woman goes to the man's house, she will not stick to four kinds of gifts.