Experienced same behavior when I added gnome to my profile and launched it today, steps to replicate:
gnunet-arm -s & gnunet-gtk expected error: (gnunet-fs-gtk:32585): GLib-GIO-ERROR **: Settings schema 'org.gtk.Settings.FileChooser' is not installed in terminal, and gnunet-fs tab is black. -- ng personal contact: http://krosos.sdf.org EDN: https://wiki.c3d2.de/EDN