[whpalmer4]

Interesting. It isn't working for me either at this point, but I did successfully get it to use Zapfino as the default font for me last night before posting that message!

Try this on for size:

defaults write com.omnigroup.OmniGraphSketcher '{ "DefaultLabelFont" = { NSFontNameAttribute = Herculanum; NSFontSizeAttribute = 14; };}'

Or use a property list editor to add the DefaultLabelFont property.

When you are done, the following command should get results like this:

defaults read com.omnigroup.OmniGraphSketcher DefaultLabelFont
{
    NSFontNameAttribute = Herculanum;
    NSFontSizeAttribute = 14;
}

Hopefully this will be made easier in future revisions :-)