Add axis default color to preferences->colors
Right now, the axis colors default to white and there is no way to change this behavior. This means, that if your background color is white by default, you don't see the axes when you enable them till you manually change their color to black.
Of course you can do this every time, but it would be better if there was a default axis color in the preferences->colors menu.
P.S.: white background color rocks, and should be paraviews default because: screenshots (pngs) taken with white background color look good on things that also have a white background color like papers, your girlfriends facebook wall, and emails to your boss/professor.