Since the 1960s, Aaron Brothers Corporation has used a special shade of yellow-red color on the battery organizers it manufactures for online retailers. In 1990, Adams Products (an Aaron Brothers rival) began selling its own battery organizers to online retailers, and it colored the organizers a similar yellow-red. In 1991, Aaron Brothers registered the special yellow-red color on battery organizers with the U.S. Patent and Trademark Office as a trademark.Aaron Brothers sued Adams Products for trademark infringement. Adams Products argues that the Lanham Act does not permit registering "color alone" as a trademark.Explain the law that applies to this case and argue whether a trademark violation has been committed.