Actually it appears that the Unity sidebar displays a generic folder icon whenever Shotwell is run from the build directory but hasn't been installed. I consider this a bug, and just created a ticket upstream:
http://redmine.yorba.org/issues/5176 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to shotwell in Ubuntu. https://bugs.launchpad.net/bugs/990725 Title: Shotwell will not detect mts moviefiles on memory card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shotwell/+bug/990725/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs