I was trying mlya black dark icon theme and it went bad, now I cannot get back into budgie desktop settings. this is 20.04
edit: I fixed it, thanks anyway
Ctrl alt f4 to switch to a tty and login
gsettings reset org.gnome.desktop.interface icon-theme
Ctrl alt f7 and login via the GUI
Thanks I have put this fix in a fill on usb for future use whrn things go wonkie. peteair
don’t forget to file a bug report with the icon theme maintainer - at least they will be made aware there is a potential issue to focus on if they want to.