That main page issue is a real troubleshooting nightmare.
Paddings are a smaller issue and should be easily fixable.
The "Thanks!" button should be pretty easy to re-add.
Without the sidebar -- there is no login button.
This template does not properly support categories. If you logout, all categories show before all forums. That defeats the purpose of categories.
This template is way too buggy; I'm going to have to kill it.
Also, Color Theory uses the legacy_postbit, making it not play nice with templates that use the newer postbit style.