I downloaded and modified a style file and placed it in the Notepad++ themes folder. I was able to select it and have it update the style as expected. I then went to Settings -> Style Configurator and changed the font of COMMENT of language VHDL to MS Gothic, hit save, and closed and exited Notepad++. I am able to relaunch Notepad++ and still see the change (I'm running Notepad++ in admin mode on Win7).
The only file that I can see a new timestamp on is my XML theme file, but I don't see MS Gothic anywhere in the file. Where is this information being stored? It is overriding the settings from my theme file. I also checked %APPDATA%\Notepad++\stylers.xml but I don't see it there either.
I realize I can change it back through the GUI, but I'd like to know how to get back to my original theme without selecting every style in the language manually (as I've made multiple changes). If I could edit (or delete) a file, I would prefer it.