Theme switching is not smooth

[Cpyte-Engine-Developer]

MDTopAppBar change color not smoothly on theme switching

error_demo.mp4

Code and Logs

test_app.py:

from kivymd.app import MDApp


class TestApp(MDApp):
    def build(self):
        super().build()

        self.theme_cls.theme_style = "Dark"
        self.theme_cls.primary_pallete = "Blue"

main.py:

from test_app import TestApp


def main():
    TestApp().run()


if __name__ == "__main__":
    main()

test.kv:

MDScreen:
    md_bg_color: self.theme_cls.backgroundColor

    MDTopAppBar:
        type: "small"
        pos_hint: {"top": 1}

        MDTopAppBarLeadingButtonContainer:

            MDActionTopAppBarButton:
                icon: "menu"

        MDTopAppBarTitle:
            text: "AppBar Center-aligned"
            halign: "center"

        MDTopAppBarTrailingButtonContainer:

            MDActionTopAppBarButton:
                icon: "account-circle-outline"

    MDLabel:
        text: "Text"

    MDButton:
        on_press: app.theme_cls.switch_theme()
        pos_hint: {"center_x": 0.5, "center_y": 0.1}

        MDButtonText:
            text: "Switch theme"

Versions

• OS: LMDE7
• Python: 3.12.11
• Kivy: 2.3.1
• KivyMD: v2.0.1.dev0