Since about 5 days ago all system icons in the Finder sidebar (folders, disks), the Finder Menubar (view options, buttons, back and forward) and in the display menu bar (spotlight, wifi, bluetooth) have disappeared:
When I log in as a different user or as a guest, the problem does not present itself. Also note that it's not just system icons, Alfred.app and Flux.app are missing from the menu bar too.
I've reset the pram, started in save mode but nothing seems to fix it. Any help would be appreciated :)