I'm going to experiment/trying to use Lightroom plugin-prefs, and I don't want to pollute my working Catalog/plugin.
So if i'm using a test catalog and test plugin, and delete everything afterwards there will be no trace of those prefs, if switch back to my working catalog ?
Silly question perhaps, but I have no idea where those will be stored.
Plugin preferences are stored in the LR preferences file, which is shared across all catalogs. You can save a copy of the preferences file before you start testing and then restore it when you are done. See this article for details:
https://www.lightroomqueen.com/how-do-i-reset-lightrooms-preferences/
Already have an account? Login
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.
AdChoices