def build(self):
        # The line below is optional. You could leave it out or use one of the
        # standard options, such as SettingsWithSidebar, SettingsWithSpinner
        # etc.
        self.settings_cls = MySettingsWithTabbedPanel

        # We apply the saved configuration settings or the defaults
        root = Builder.load_string(kv)
        label = root.ids.label
        label.text = self.config.get('My Label', 'text')
        label.font_size = float(self.config.get('My Label', 'font_size'))
        return root
Build and return the root widget.
dataset/ETHPy150Open kivy/kivy/examples/settings/main.py/MyApp.build