Roller 2.0 has a pretty cool feature that doesn't seem to be documented. You can apply different looks to the editor UI by passing in a "look" parameter to one of the editor URLs. Below are three that ship with Roller 2.0:
- http://raibledesigns.com/index.jsp?look=tan (default)
Looking in the theme directory, there appears to be two other options: lavender and blueslate. However, they appear to render the same look and aren't nearly as pretty as the other three.
I discovered this parameter by looking in theme/banner.jsp. Looking at this file, it appears you can change the default by defining a "editor.theme" property in roller.properties.