def __init__(self):
super().__init__()
# settings
self.app_name = "OSFOffline"
self.app_author = "COS"
# views
self.start_screen = StartScreen()
self.tray = SystemTray()
self.preferences = Preferences()
AlertHandler.setup_alerts(self.tray.tray_icon,
self.tray.tray_alert_signal)
# connect all signal-slot pairs
self.setup_connections()
self.background_worker = BackgroundWorker()
