With Gnome 3.16, applications like nautilus, totem, file-roller, evince, gnome-calculator and others in other desktop environments (XFCE, KDE) have an ugly frame around their windows now. It's probably a not working shadow. See e. g. <a href="http://i.imgur.com/tNdVSI6.png">http://i.imgur.com/tNdVSI6.png</a> (Screenshot made with XFCE and kwin, but it happens with xfwm4, too. GTK theme = Adwaita-Manjaro. With pure Adwaita, the frame is slightly thinner and white, but still exists.) This is probably related to <a href="https://blogs.gnome.org/fmuellner/2015/01/30/a-small-note-on-window-decorations/">https://blogs.gnome.org/fmuellner/2015/01/30/a-small-note-on-window-decorations/</a> Does anyone know how to get rid of this frame in other DEs? Thanks.