Hey guys, I need a little help.
I will sell Wordpress theme coded by me, but I completely don't know how to license it.
I was googling about this topic and I found that Wordpress themes need dual-licensing: all Wordpress PHP code have to be under GPL license, whole artwork and my code at my license.
I totally don't know anything about licensing. I want to restrict buyer to use my theme on max 3 websites, and protect my code from reselling/piracy.
Can you help me what can I do with these licenses?

