[Unit]
Description=GTK dark mode settings
After=graphical-session.target
PartOf=graphical-session.target

[Service]
Type=oneshot
ExecStart=/usr/bin/gsettings set org.gnome.desktop.interface gtk-theme Adwaita-dark
ExecStart=/usr/bin/gsettings set org.gnome.desktop.interface color-scheme prefer-dark

[Install]
WantedBy=graphical-session.target