Zbrush 2.0 Questions

I’ve been trying to figure out how to change the background color so that when you take a “best” render to save as a .pdf you don’t have to render on that grayish color. I’ve tried under render options but havent figure it out.

 Also I was wondering if there is a way to render in perspective view, instead of the default user view. Any knowledge would be truely apperciated. Thanks,