The fluido-skin is an alternative Maven site skin with rounded corners and code syntax highlight.
Do you want to see how does it look? Check these projects pages:
Using it it's quite easy: it is available on Maven central repository and all you need is just add the following XML snippet in your site.xml:
<project name="XXXXXXXX"> .... <skin> <groupId>org.99soft</groupId> <artifactId>fluido-skin</artifactId> <version>VERSION</version> </skin> .... </project>
That's all, have fun with it! :)