I changed my LightDM greeter and suddenly I cannot change my gtk or icon theme. The dconf settings are there, but the system is not responding to changes, nor are the themes being used by all applications. GTK+ 2.x applications are using the default/fallback theme.
What gives?
Update:
I thought the permissions on some folder might be the problem, but I was wrong. Even after making sure everything in my home folder is assigned to my username and has the right permissions I still have the issue. Changing to SDDM allowed me to at least change the window manager theme but I still can't change anything else. It says the theme is set to my choice in dconf editor but it isn't actually being set otherwise.
I tried lxappearance, but it is only affecting GTK2 applications. GTK3 applications are still stuck with the default theme and I can't get them to change at all.
Another clue:
GTK 2 applications run as root are not using the theme I selected in lxappearance.