[pmwiki-users] Skin question: how can I tell what css pmwiki is using by default?

[Peter Kay]

I'm working on a new skin, and I've run into all these lovely things 
embedded in unexpected (by me anyway) places:

$HTMLStylesFmt['pwiki'], ['diff'], etc.

Is there some way I can see what pmwiki uses as a default for each of 
these??  These are all php variables...I'm not sure there's a way to 
display these in the wiki; am I wrong?

--Peter