inserimento.kv

<Inserimento>



    MDBoxLayout:
        id:"layout"
        orientation: "vertical"
        size_hint_y: None
        height: 50
        spacing: 5
        md_bg_color: app.theme_cls.bg_normal
        padding: [0, 0, 10, 0]


        MDIconButton:
            icon: 'arrow-left'
            theme_text_color: 'Custom'
            text_color: app.theme_cls.opposite_bg_normal
            user_font_size: 18
            size_hint: (None, None)
            pos_hint: {'center_y':.5}
            size: 30, 30
            padding: 0
            pos_hint: {'center_y':.5}
            on_press: root.manager.current = 'HomePage'