I've had this issue for a while now, since I thought I could fix it myself. Almost all my programs have lost their icon image, which is not fixable by applying a different icon theme unfortunately. Just installed the Reversal icon pack to test that. My settings are attached here, sorry for the german:
I am assuming this is due to some of the weird behaviour I have had for some days months ago. Gnome would just not load and instead show me an error screen. So I had to uninstall gnome entirely, then reinstall it and that magically fixed it, but my icons were gone.
That command screams for a backup 😬
Yikes. Something is missing. Is this Debian? You could swing by their forums or IRC and get sorted out fast. I'm sure there is a dpkg command that fixes this up. As for the icons, there is definitely a missing package related to adwaita or some lingering config file needs to be reset to defaults.
Pretty sure they meant you probably should've suggested a backup or given a heads-up of some sort before running the command you brought up, since one would presumably lose all settings previously stored in dconf and that's quite the extreme measure
For Gnome settings? I suppose you could backup everything. It isn't removing all dconf settings, just gnome, which is broken in this case.
Ah, I'd missed the namespace somehow. Fair enough!
No. You're right. I should have added a bold warning that it will reset gnome back to defaults too.