I ran an update yesterday (April 26), where some 320 MiB mostly system libraries were updated (unfortunately do not have a list. BTW I am running updates every day). Since that certain visuals are broken - i.e. font size and spacing in the nm-applet, all of the different login dialogs are missing password frames (incl LightDM). I did not change any settings before or after the update.
What should I do to repair that?