Does a custom theme have to be made public?

Hi Guys.

Just wanted to know, if I was to build a custom WP Theme for a client, would that theme then have to be made available to the public, either free or as a premium design.

The reason I ask is that I made a suggestion to the client re: building the site using WP, but they seemed unsure as they felt that others could then use their design for their own sites. They want to be unique, which is fair enough, but I’m not sure what it would mean with the open source nature of WordPress and all.

Any thoughts would be great.

All the best,

Tim.

No you do not have to release it to anyone.

Thanks BPartch.