Use it according to the registered category, do not use it across categories. Simply put, it means what category and product you registered, use it on the corresponding packaging and promotion, and you cannot use it if it is different from the product you registered. . There may be a risk of infringement.
Furthermore, use whatever registration format is used and do not change the style.
If a color trademark is registered, the color cannot be changed. If a black and white trademark is registered, the shape and style cannot be changed, but the color can be changed at will