GTK Apps ignoring chosen GTK theme
As the Ubuntu channel doesn't have anyone who can help with this...
Since this morning, in a normal Gnome session, all of my GTK apps, menus and icons (except, oddly for the Gnome panel) are using the same drab and boring style that they use when they're running as root. Which they're not.
No one else uses this computer, and I've made no changes to any GTK-based or affecting settings, except to try to change the GTK controls, with no effect at all. So I cannot understand why this is happening.
Does anyone have a diagnosis, solution, or both?