The trademark application statement is not required. This column must be filled in only if you apply for registration of a collective trademark or certification mark, if you apply for trademark registration with a three-dimensional mark, color combination, or sound mark, or if two or more applicants apply for registration of the same trademark at the same time.

Color combination trademarks specifically refer to trademarks that only consist of a combination of colors and colors and do not contain any text, graphics, etc. The letter combination trademarks of different colors you mentioned are ordinary word trademarks and are not the special trademarks mentioned above, so there is no need to fill in the form.