In reply to Ryan Hellyer.

@Miroslav/Ryan/Andreas,

IANAL, but I would think that copyright would apply to function names, and trademark would apply to the name of the final product/service, as well as to the entity placing that product/service on the market.

In other words: the Genesis Theme name would be covered by Trademark, but the name of function genesis_some_function_name() { // functional code } would be covered by trademark, as a creative expression of naming convention.