I was mostly joking, but way to go retro!
The complexity of SMF's theme templates lends itself well to what you want. You can defeature the site quite effectively through a minimalistic theme. I eagerly await your patches!
I've actually had the source to SMF 2.0.4 downloaded for a few days now and have been browsing through it. Quite amazed at the level of complexity in the themes and how it is so much more than just reskins. Thought a theme could be cloned and have a few key things changed to get a minimalistic look by someone more familiar with the code.
As I'm happy with the GH layouts as they are, I'm not going to try to set it up local and muck with it. Maybe when there's some quirk I just have to have...
Hehe...yeah you are going through the same process that we did. It seems like a straight-forward job at first. Mkawa was working on a simpler theme and had made some progress. In the end we all had to move on to other, more pressing matters with the new site hardware architecture.
The style sheet for Curve is completely insane. The way they achieve the curvy look is by snipping-out slivers of PNGs and pasting them into blocks. This gives 100% control over how the blocks are rendered in terms of radius and color gradient. Just changing the colors took a very long time because I had to re-color all of these PNGs.
Nostalgia uses less of this, but it still uses some because I was trying to roll it out quickly. Cutting away this cruft is on my to-do list. Doing so will be a good stepping stone to more interesting themes. But yes, the template has all kinds of extra eye-candy and all the style sheet support that goes with it.
There are lots of SMF themes out there. A lot of them are incomplete or hopelessly broken. Playing with the topic index and post layouts is fun. Writing templates for the profile editor or the package installer is much more boring.