from kivymd.tests.base_test import BaseTest class CardTest(BaseTest): def test_card_m3_style_raw_app(self): from kivymd.uix.behaviors import RoundedRectangularElevationBehavior from kivymd.uix.card import MDCard from kivymd.uix.screen import MDScreen class MD3Card(MDCard, RoundedRectangularElevationBehavior): pass self.app.theme_cls.material_style = "M3" self.render( MDScreen( MD3Card( size_hint=(None, None), pos_hint={"center_x": 0.5, "center_y": 0.5}, size=("200dp", "100dp"), line_color=(0.2, 0.2, 0.2, 0.8), style="elevated", md_bg_color="lightblue", ) ) )