But instead of seeing some complex series of options, or a list of CSS files to edit, there in front of me was every major part of the forum, split into sections, each with its own page to mess about with the settings.
However this is what was amazing: An undo button, and a reset button (to get back to defaults in each section if it goes Pete Tong).
I made my forum fixed width in about, er, 30 seconds. Changed the global fonts in the same time. Adding a background image to the header, the main page, and a new logo took about 5 minutes and that included 4 minutes to make a cup of coffee.
One bit that I got stuck on was answered here in the forum in a very short time.
I know this is asked a lot here: "Is it easy to change the look and style of Xenforo?". The answer is yes, and if I can do it, anyone can.
You can even change the look and colour of the alert bubble so it stands out against your header!
This software just keeps getting better and better