: Established by the Supreme Court in Star Athletica v. Varsity Brands , a design feature is protectable if it:

Could you provide more context or check the of " ZamillaMserthzip " to help me find the specific article you are looking for?

: Artistic features are only copyrightable if they can be identified separately from and exist independently of the article's functional aspects.

For more detailed information, you can refer to the official U.S. Copyright Office guide on Useful Articles or the Legal Information Institute's definition .