Sorry I'm not sure what folder you're referring to.
There is no particular theme management in VMVendor, it uses the usual Joomla MVC where views can be overridden in the template folder.
- Need help? Post the URL of the related page (eventualy as confidential info), it will help solve your issue faster.
- An error, notice or warning? report the exact message including the line number
- If you get a white page , enable error reporting and / or check your server error logs.