How to figure out which theme a user is using?
 

I'm looking through the PHP code for showthread trying to figure out how fetch_template knows which template to fetch (for which style). Where is this kept track of for each user?

user table, field styleid

$vbulletin->userinfo['styleid'] I think.

Is there any documentation anywhere that goes into details about these structures and their parameters? Or do you just have to figure it all out from the code

Mostly you need to figure it out by reading the code.

Figure, figure, figure.... ;)

Oh and vBulletin Articles :)