这是我单独用于材质日历的风格，除了选定的日期圈外，一切都很完美

<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
    <item name="android:windowBackground">@color/colorAppBackground</item>
    <item name="android:actionMenuTextAppearance">@style/RobotoMenuText</item>
    <item name="titleTextAppearance">@style/RobotoMenuText</item>
    <item name="android:windowIsTranslucent">true</item>
    <item name="titleTextStyle">@style/RobotoMenuText</item>
    <item name="colorSurface">@color/colorAppGreen</item>
    <item name="materialCalendarTheme">@style/CalenderTheme</item>
    <item name="materialCalendarFullscreenTheme">@style/ThemeOverlay.MaterialComponents.MaterialCalendar.Fullscreen</item>
    <item name="materialCalendarStyle">@style/Widget.MaterialComponents.MaterialCalendar</item>
</style>
<style name="CalenderTheme" parent="Theme.MaterialComponents.Light.DarkActionBar">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
    <item name="android:windowBackground">@color/colorAppBackground</item>
</style>