There is an idea of "business dress", which can also be protected.
That is, you can make a drink that tastes like Coca-Cola, but you should not sell a drink in bottles shaped like Coca-Cola's, with a red label, and imitating the longhand of the name. That is, you should not make something excessively similar to an existing established thing in order to trick customers into buying your thing instead of the established thing.
That is, you can make a drink that tastes like Coca-Cola, but you should not sell a drink in bottles shaped like Coca-Cola's, with a red label, and imitating the longhand of the name. That is, you should not make something excessively similar to an existing established thing in order to trick customers into buying your thing instead of the established thing.