I think this is a basic question, but I've only stumbled on knoppix last weeked, so please forgive me!

When knoppix is started, users can select lang=us, lang=fr, etc ... I am curious if each choice loads a different set of configuration files in KDE?

If that's the case, can each configuration be modified individually so that choosing the language also changes other parameters, such as the color of the text on the desktop? How would I go about doing something like this in a remastered knoppix?

Thank you,
Jake