You guys know there's tools like Stylish where you can import your own CSS on any webpage (kinda like GreaseMonkey but for CSS rather than Javascript). It would take all of 5 minutes to learn the VERY basic CSS needed to edit colors, all you need to do is edit the lines that say Background. The hard part you guys can't do is the actual structure of the theme (what the forum software spits out) (well you could but it'd be a lot more work for you than for me to do it), but color editing is just a few lines in CSS.
Hell I'll upload the site's main CSS file and point out which sections do what and would be more than happy to help with any questions (or make any accommodations to make it easier for you guys). There really isn't a reason why I have to be the only one supplying multiple themes, color manipulation is pretty easy with very common browser plugins.
Eventually I will have a way to change color palettes built into the site but for now it'll be one color scheme. The idea of the theme rewrite was with this in mind, so you guys can easily add your own customizations to it. Most big web communities have a set of user made custom scripts or CSS to change looks or add features beyond the default.
The problem with that is that the theme (at least in its current implementation) is dumb from a HTML/CSS standpoint. For instance, the colors for a user's name is stuck in a style attribute instead of using a class like 'role-acolyte' and then picking the color in a CSS file. That needs to be addressed for the board to be more easily themed by users.
If you use a color tag there's the same problem, where ideally the color selection would be done through a class so it can be tweaked if necessary. As an example, one forum I frequent switched away from VBulletein to a custom Vanilla board, and we switched from a dark-blue color theme to
this. As a result, certain color tags that worked fine on the old board ("lime" for truth) became nigh-unreadable and I did some adjusting on my end to make it nicer.
Hard-to-read colors here include the Shrine Janitor color, the Idiot Maiden color, and the color #F88379 being used for what I think is the Global Mod primary group. They were fine on the dark theme, but they're much harder to read on the blue.