Main:
    name: "HomeScreen"
    md_bg_color: app.theme_cls.accent_light
    GridLayout:
        cols: 1
        Label:
            text: "micro:bit interface"
            font_size: 60
            color: app.theme_cls.primary_dark
        GridLayout:
            cols: 2
            Button:
                text: "Start"
                on_release:
                    app.root.current = "CommandScreen"
            Button:
                text: "Settings"