I'm not so sure about releasing this as a theme to be honest; I'm unsure about how people will feel about installing a plugin to run a theme. Also, if you look at the stylesheets (aside from being pretty hacky) it doesn't edit global.css at all; it's all overwritten by another stylesheet - which is perfect for me to use with the rest of the website but not so great for others.
For example, the plugin detects whether or not to include the IE-only edits to the stylesheet or to add-in the buttons stylesheet - rather than rely on MyBB's systems. It even detects whether or not the user is on a mobile device and whether to switch to a mobile/smartphone version of the theme (isn't available here just yet).
So the moral is that it needs a bit of work, which I'd rather spend the time making better features.