The introduction the the Quartz based themes in iMovie 06 is too tempting to leave alone for more than a few days. The themes are good but never what you need. When they are so easy to change and create in Quartz then why would you not want to "Tweak" them. My problem is that I have now created the new quartz file that I would like, I have updated the Property list files and the string table file. However when restarting imovie / machine reboot the changes to existing and new themes are not picked up. There is a unix binary in the theme so I assume you may need to rebuild this. Does anyone know how to apply the changes so that they appear. Maybe we could start sharing some alternative themes.