CommonElevationBehavior example code is not working

[Sahil-pixel]

elevation is not showing

Code and Logs

from kivy.uix.behaviors import ButtonBehavior

from kivymd.app import MDApp
from kivymd.uix.behaviors import (
    RectangularRippleBehavior,
    BackgroundColorBehavior,
    CommonElevationBehavior,
)

KV = '''
<ElevationWidget>
    size_hint: None, None
    size: "250dp", "50dp"

MDScreen:

    # With elevation effect
    md_bg_color:[1,1,1,1]
    ElevationWidget:
        pos_hint: {"center_x": .5, "center_y": .6}
        elevation: 4
        shadow_offset: 0, -6
        shadow_softness: 4

    # Without elevation effect
    ElevationWidget:
        pos_hint: {"center_x": .5, "center_y": .4}
'''

class ElevationWidget(
    RectangularRippleBehavior,
    CommonElevationBehavior,
    ButtonBehavior,
    BackgroundColorBehavior,
):
    def __init__(self, **kwargs):
        super().__init__(**kwargs)
        self.md_bg_color = "red"

class Example(MDApp):
    def build(self):
        return Builder.load_string(KV)

Example().run()
![Screenshot from 2024-04-26 11-55-45](https://github.com/kivymd/KivyMD/assets/57060638/d4dfd830-e046-4d0d-95de-f35cc0a47512)

Screenshots

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Versions

• OS: ubunut
• Python: 3.10
• Kivy: 2.3.0
• KivyMD: 2.0.1dev0

[HeaTTheatR]

https://github.com/kivymd/KivyMD/issues/1631

[HeaTTheatR]

elevation_level