Idiom to describe a flag with a very bright color.

Let a hundred flowers blossom. Let a hundred flowers blossom and be colorful. It symbolizes the free development of various artistic forms and styles. It also describes the prosperity of the art world.

Source: Li Qingruzhen's "Mirror Flower Edge" The third time: "The Hundred Flowers Fairy only cares about playing chess here, and the emperor suddenly has an imperial decree, ordering him to let a hundred flowers blossom."

Flowers are blooming, and all kinds of flowers and trees are competing to produce gorgeous flowers.

A hundred flowers are blooming and colorful, which often means that things are colorful and the scene is prosperous.

Source: Ming Ming's "Wei Zi Palace" is the second discount: "Midwinter Festival is beautiful, and flowers are gorgeous."