Hi Jack!
Themes 1, 2 and 3 comes from Office 2003 (Blue, Olive and Silver) and themes 4, 5 and 6 comes from Office 2007 (Black, Blue and Silver).
I have future plans to create a ThemesCreator to let the developers create your own themes.
Regards,
Emerson Santon Reed
"One Developer CAN Make a Difference. A community CAN make a future." - Craig Boyd
