Blue represents water, and gold represents treasure, which conforms to aquatic gold. Therefore, the blue background matches the gold words well.
Signboard refers to the sign hanging in front of the store as a sign, which is mainly used to indicate the name and mark of the store. It can be called a store logo, which can be vertical or horizontal, or the font size can be horizontally engraved on the archway in front of the store, or a giant plaque can be hung under the eaves, or the characters can be horizontally embedded in the building; Coordinates are signboards set on the front counter of shops, which were common before the Ming Dynasty. Wall paintings are written on the wall of the store, indicating the business scope and category of the store. A signboard is the image of a shop. In feng shui, there must be its image, such as the name of the signboard falling off, worn out and eclipsed. This will affect the business of the store from bad to worse.