sddm
- sddm-greeter sddm-astronaut
- sddm-greeter --test-mode lubuntu
- sddm-greeter --test-mode sddm-astronaut
- sddm-greeter --test-mode sddm-chili-0.1.5
- sddm-greeter --test-mode sugar-dark
- sddm-greeter --test-mode --theme sddm-astronaut
- sddm -h
- sddm --version