qBittorrent official forums

Hi all, I'm running qbittorrent on unRaid linux in a headless configuration.  I've checked the configuration file at ~/.config/qBittorrent/ and there doesn't seem to be anything in the file about what headers get displayed.  But because I have used the client before on Windows, I know it is possible to change the headers.  In fact, I installed qBittorrent on windows and changed the headers, and checked the configuration file and didn't see any changes. 

So where is the configuration for the headers coming from?

Thanks.