Font Size in Xcode

All right. I must be a complete idiot because I can’t seem to increase the font size in the xcode editor window. I’ve tried under “fonts and colors” in preferences, but while the color seems to be changeable, the font size seems to locked in, almost as if it’s using some system wide setting. For example, the “xcode default” and “presentation” look exactly the same in 3.2.4. Any help for a guy starting to need reading glasses would be appreciated.

Hmm … well, can I at least get some idea of whether or not others are able to change the font size in xcode 3.2.4?

I think you have to Duplicate the color theme so you are saving a custom one before you can edit it?