BiogasControllerApp/gui/popups/popups.kv

<QuitPopup>:
    title: "BiogasControllerApp"
    font_size: 50
    size_hint: 0.5, 0.4
    auto_dismiss: False
    GridLayout:
        cols: 1
        Label:
            text: "Are you sure you want to leave?"
            font_size: 20
        GridLayout:
            cols:2
            Button:
                text: "Yes"
                font_size: 15
                on_release:
                    root.quit()
                    app.stop()
            Button:
                text: "No"
                font_size: 15
                on_press:
                    root.dismiss()

<SingleRowPopup>:
    title: "INFORMATION"
    size_hint: 0.7, 0.5
    auto_dismiss: True
    GridLayout:
        cols: 1
        Label:
            id: msg
            text: "Message"
            text_size: self.width, None
            halign: 'center'
        GridLayout:
            cols: 1
            Button:
                text: "Ok"
                on_release:
                    root.dismiss()

<TwoActionPopup>:
    title: "WARNING!"
    font_size: 50
    size_hint: 0.5, 0.4
    auto_dismiss: False
    GridLayout:
        cols:1
        Label:
            id: msg
            text: "Message"
            font_size: 20
            halign: 'center'
        GridLayout:
            cols:2
            Button:
                id: btn1
                text: "Details"
                on_release:
                    root.action_one()
                    root.dismiss()
            Button:
                id: btn2
                text:"Ok"
                on_release:
                    root.action_two()
                    root.dismiss()

<DualRowPopup>:
    title: "Details"
    font_size: 50
    size_hint: 0.7, 0.6
    auto_dismiss: False
    GridLayout:
        cols:1
        Label:
            id: msg_title
            text: "Message title"
            font_size: 20
        Label:
            id: msg_body
            text: "Message body"
            font_size: 14
        Button:
            text:"Ok"
            on_release:
                root.dismiss()

<LargeTrippleRowPopUp>:
    title: "DETAILS"
    font_size: 50
    size_hint: 1, 0.7
    auto_dismiss: False
    GridLayout:
        cols: 1
        Label:
            id: msg_title
            text: "title"
            font_size: 20
        Label:
            id: msg_body
            text: "Message"
            font_size: 13
        Label:
            text: msg_extra
            font_size: 13
        Button:
            text:"Ok"
            on_release:
                root.dismiss()