Corel Painter IX Hotkey Question

Sorry if this is question is answered somewhere already.

Quick question: Is there a hotkey in painter IX that can switch the "Main Color" and "Additional Color" colors?

In Photoshop, this can be done by pressing X. In Illustrator, Shift+X...

Is there an equivelent to this in painter?

Thanks!

Ignore my question haha..

Shift + X does the trick....erm

Maybe I already knew this and got my Illustrator shortcuts mixed up....oh well!