The idea behind the theme is that each language has its own core color. This way, it's easier to visually differentiate languages when they're used together.
For example, HTML uses shades of blue while Ruby uses red. Then it's easy to see your ERB tags:
CSS uses purple (an homage to @mdo):
In a Sass file, it's easy to see vanilla CSS vs. Sass (which is red, since it's Ruby):
I've chosen green for Javascript:
And browns for Coffeescript:
The iTerm and Terminal themes look like so:
