Logout/Reboot/Shutdown

Logout.desktop

[Desktop Entry]
Type=Application
Name=Logout
Comment=Termina la sessione
Exec=gnome-session-quit --logout --no-prompt
Icon=/home/***/.local/share/icons/custom/logout.png
Terminal=false
Categories=System;
NoDisplay=true
StartupNotify=true

Reboot.desktop

[Desktop Entry]
Type=Application
Name=Riavvia
Comment=Riavvia il computer
Exec=systemctl reboot
Icon=/home/***/.local/share/icons/custom/reboot.png
Terminal=false
Categories=System;
NoDisplay=true
StartupNotify=true

Shutdown.desktop

[Desktop Entry]
Type=Application
Name=Spegni
Comment=Spegni il computer
Exec=systemctl poweroff
Icon=/home/***/.local/share/icons/custom/shutdown.png
Terminal=false
Categories=System;
NoDisplay=true
StartupNotify=true