Grandma made a rainbow cake for her birthday. First of all, I don't think my square is sweet, like a little dessert, and the cake can add 20 grams of sugar. It was supposed to be made of fruit and vegetable powder or fruit and juice, and it felt healthier. But given that every layer of cake tastes different vegetables or fruits, it's strange and it's particularly difficult to do so. So it was finally decided to buy the base color of Wheatone, red, yellow, blue, coffee, in color. So the remaining three colors are on their own。