freechat/freechat-client/share/kivy-examples/demo/showcase/data/screens/buttons.kv

ShowcaseScreen:
    name: 'Buttons'

    Button:
        size_hint_y: None
        height: '48dp'
        text: 'Button normal'

    Button:
        size_hint_y: None
        height: '48dp'
        text: 'Button down'
        state: 'down'

    Button:
        size_hint_y: None
        height: '48dp'
        text: 'Button disabled'
        disabled: True

    Button:
        size_hint_y: None
        height: '48dp'
        text: 'Button down disabled'
        state: 'down'
        disabled: True