Look and Feel

Can I use a custom look and feel as a substitute for the default metal 
look and feel. I really like the "Kunststoff" look 
(http://www.incors.org). I have used it in other products like netbeans 
but I didn't see any documentation to use it in jswat. Is there a 
command line option or property that I can set that will allow me to 
specify another look and feel for metal?

Thanks,
Michael