main.kv

<ActionBar>
    pos_hint: {"top":1}
    background_color: "#FF0000"
    ActionView:
        use_separator: True
        ActionPrevious:
            title: '[b]Do[color=#00FF00]SB[/color]oX[/b]'
            markup: True
            app_icon: 'icon.png'
            with_previous: False

<TextInput>
    size_hint: (0.3, None)
    height: "30dp"
    background_color: "#220000"
    foreground_color: "#AAAAAA"
    cursor_color: "#660000"
    cursor_width: "10sp"
    use_bubble: True
    do_wrap: False
    bold: True
 
<ScrollView>
    do_scroll_x: False
    do_scroll_y: True
    size_hint: (0.6, 0.9)
    pos_hint: {"left":1}

    Label:
        id: label
        size_hint_y: None
        height: self.texture_size[1]
        text_size: self.width, None
        padding: 10, 10
        markup: True

<Button>
    size_hint: (0.3, None)
    height: "30dp"
    background_color: "#660000"
    foreground_color: "#AAAAAA"
    cursor_color: "#660000"
    cursor_width: "10sp"
    bold: True