Preview of CSS themes for Fluxer

Problem

Suggest a preview of CSS themes. When importing CSS themes, its code is displayed, but it's not clear how the CSS theme will look in my client, which can be quite annoying... What if I import a theme and it completely breaks Fluxer's GUI.

Proposed solution

When importing a CSS theme, add a "Preview" tab that would show an example of how my Fluxer client's GUI will look after importing the theme. If the user doesn't like the theme or it breaks the client's GUI, they can simply choose not to import it. This would also nicely solve the issue of not having to upload sample screenshots of the CSS theme, which could save quite a bit of time... Plus, screenshots sometimes can't really prove how good the theme will look for THE specific user, rather than for the theme's coder.

Notes (optional)

It would be preferable to use an interactive preview, so you can spin things around, click stuff, etc. and get a sense that the theme will suit the user and also won't break the GUI.