I also know its history. However, his bland name and shop URL have been described yet in the Theme Author and Theme Author URI of the core sources and credit of page footer. Most users are misunderstanding it as official author and official shop by these things. Jatin will be able to continue to claim the copyright. But, usually, author of the software included (donated) and modified as a part of the core will be replaced with project name. This is my opinion (common handling), there is no legal basis. Anyway, modification of the theme source would be necessary.