def build(self):
Window.size = (500, 300)
# Window.borderless = True
sm = ScreenManager()
screens = [
MenuScreen(name='menu'),
SettingsScreen(name='settings')
]
sm.add_widget(screens[0])
sm.add_widget(screens[1])
sm.transition = SwapTransition()
sm.current_screen = screens[0]
# # later
# sm.switch_to(screens[1], direction='right')
return sm
