bottom sheet custom BG theme

styles.xml

    <style name="BaseBottomSheetDialog" parent="@style/Theme.Design.Light.BottomSheetDialog">
        <item name="android:windowIsFloating">true</item>
        <item name="bottomSheetStyle">@style/BottomSheet</item>
        <item name="android:windowBackground">@color/transparent2</item>
        <item name="android:windowFrame">@null</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowTitleStyle">@null</item>
        <item name="android:colorBackgroundCacheHint">@color/transparent2</item>
    </style>