Oh, that one does bring back memories! A proto-CSS Zen Garden of sorts, absolutely fascinating at the time.
We used to spend hours applying those 8 stylesheets to our pages and deciding which one we preferred... Really edgy types used two, or perhaps even three, different styles on their handwoven Web Pages.
The interesting tidbit being: "We're initially going to be launching our Linux support on GOG.com with the full GOG.com treatment for Ubuntu and Mint."