In my announcement email I said there were not other themes but I went and looked and found two of the themes I used before supported in this version and one additional one. Try them all!
Installed and Supported Themes
prosilver
AllanStyle-SUBSILVER <---- my favorite!
prosilver Special Edition
SE Square Left
To change your theme go to the User Control Panel
Board Preferences tab
Select My board style
Themes installed for forum v3.2.x
Moderator: Bob