Hello, Jeff,    

I would like to note that our Crystal themes are fully Mac-inspired. We strived to follow a clean and simple, yet popular and trendy design. 

Have in mind that you can customize any of the default themes in order to achieve any custom design that you are looking for. For such cases, our very powerful Visual Style Builder is quite appropriate.

You can read more details about using the Visual Style Builder here:
1.     Loading predefined themes
2.     Working with Repository Items
3.     Saving and Loading Theme Files
4.     Loading Themes from an External File
5.     Loading Themes from a Resource
6.     Applying Theme to a Control
7.     http://tv.telerik.com/watch/winforms/visualstylebuilder/whats-new-visual-style-builder-q1-2010

I hope this information helps. If you need any further assistance please don't hesitate to contact me.

Regards,
Dess | Tech Support Engineer, Sr.
Progress Telerik