1.
sudo apt-get install gtk3-nocsd libgtk-3-dev libgirepository1.0-dev2.
sudo gedit /etc/X11/Xsession.d/01gtk3-nocsd3. Promjenite:
#export GTK_CSD=0sa
#export GTK_CSD=14. GTK3 Classic:
sudo add-apt-repository ppa:lah7/gtk3-classic5.
sudo apt dist-upgrade6. Reboot.