Windchill PDMLink change appearance (eg color scheme)

Hi everybody,

I have set up a Windchill test system. Apart from the url in the adress bar, the testsystem looks like the productive system.

Is there a way to mark the test system as what it is - e.g. setting different colors. Perhaps the colors are made with a css-file in the backend?!

Thanks for your help

Best Regards,

Benjamin