Where are KDE 4 Oxygen style files located?
 

I have a Kubuntu installation. I have found KDE4 sound, cursor, icon themes, but i still can't find where Oxygen widget style files are located (i need images of buttons etc. - Qt and kwin ones).
Could someone please point me to them?

It will be in the first few lines of output. Be sure to set the scroll rate at unlimited.

OK, 2 years have passed since I've asked this question. Now I can answer it myself, just to mark it as solved: oxygen is not image-based, it's based on a C++ engine, which has all the code to render widgets.