themes.xml

<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:tools="http://schemas.android.com/tools">
    <!--
     The light themes are only for day mode and must not be defined in night/theme.xml.
     https://material.io/develop/android/theming/dark
    -->

    <!--
      BaseActivity Light DarkActionBar theme.
      https://github.com/material-components/material-components-android/blob/1.4.0/lib/java/com/google/android/material/theme/res/values/themes.xml#L33
     -->
    <style name="Theme.BaseActivity.Light.DarkActionBar" parent="Theme.MaterialComponents.Light.DarkActionBar">
        <!-- Primary brand color. -->
        <item name="colorPrimary">@color/red_400</item>
        <item name="colorPrimaryVariant">@color/red_800</item>
        <item name="colorOnPrimary">@color/white</item>

        <!-- Secondary brand color. -->
        <item name="colorSecondary">@color/grey_900</item>
        <item name="colorSecondaryVariant">@color/black</item>
        <item name="colorOnSecondary">@color/white</item>

        <!-- Status bar color. -->
        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
        <item name="colorPrimaryDark" tools:targetApi="l">?attr/colorPrimary</item>

        <!-- Text color. -->
        <item name="android:textColorPrimary">@color/black</item>
        <item name="android:textColorLink">@color/blue_link_light</item>

        <!--
         Dialog Themes.
         These MUST be defined for the application `android:theme` so that if dialogs
         are shown from non-activity context with TYPE_SYSTEM_ALERT, the correct dialog theme is
         applied, otherwise exceptions like `UnsupportedOperationException: Failed to resolve attribute
         at index... TypedValue` will be thrown, since ThemeOverlay would have all the activity
         theme attributes defined.
        -->
        <item name="alertDialogTheme">@style/ThemeOverlay.BaseDialog.DayNight</item>
        <item name="materialAlertDialogTheme">@style/ThemeOverlay.BaseDialog.DayNight</item>
    </style>

    <!-- BaseActivity Light NoActionBar theme. -->
    <style name="Theme.BaseActivity.Light.NoActionBar" parent="Theme.BaseActivity.Light.DarkActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
    </style>



    <!-- BaseActivity DayNight DarkActionBar theme. -->
    <style name="Theme.BaseActivity.DayNight.DarkActionBar" parent="Theme.BaseActivity.Light.DarkActionBar"/>
    <!-- BaseActivity DayNight NoActionBar theme. -->
    <style name="Theme.BaseActivity.DayNight.NoActionBar" parent="Theme.BaseActivity.Light.NoActionBar"/>



    <!-- BaseActivity extended classes Day NoActionBar themes. -->
    <style name="Theme.MediaViewActivity.Light" parent="Theme.BaseActivity.Light.NoActionBar"/>
    <style name="Theme.MarkdownViewActivity.Light" parent="Theme.MediaViewActivity.Light"/>

    <!-- BaseActivity extended classes DayNight NoActionBar themes. -->
    <style name="Theme.MediaViewActivity.DayNight" parent="Theme.BaseActivity.DayNight.NoActionBar"/>
    <style name="Theme.MarkdownViewActivity.DayNight" parent="Theme.MediaViewActivity.DayNight"/>





    <!--
      BaseDialog Light theme.
      https://github.com/material-components/material-components-android/blob/1.4.0/lib/java/com/google/android/material/dialog/res/values/themes.xml#L70
     -->
    <style name="ThemeOverlay.BaseDialog.Light" parent="ThemeOverlay.MaterialComponents.MaterialAlertDialog">
        <!-- Primary brand color. -->
        <item name="colorPrimary">@color/red_400</item>
        <item name="colorPrimaryVariant">@color/red_800</item>
        <item name="colorOnPrimary">@color/white</item>

        <!-- Secondary brand color. -->
        <item name="colorSecondary">@color/grey_900</item>
        <item name="colorSecondaryVariant">@color/black</item>
        <item name="colorOnSecondary">@color/white</item>

        <!-- Surface color. -->
        <item name="colorSurface">@color/design_default_color_surface</item>
        <item name="colorOnSurface">@color/design_default_color_on_surface</item>

        <!-- Dialog title panel style. -->
        <item name="materialAlertDialogTitlePanelStyle">@style/BaseDialog.Title.Panel</item>

        <!-- Dialog message text style. -->
        <item name="materialAlertDialogBodyTextStyle">@style/BaseDialog.Message.Text.Light</item>
    </style>

    <!-- BaseDialog DayNight theme. -->
    <style name="ThemeOverlay.BaseDialog.DayNight" parent="ThemeOverlay.BaseDialog.Light"/>

    <!-- BaseDialog extended classes DayNight themes. -->
    <style name="ThemeOverlay.MessageDialog.DayNight" parent="ThemeOverlay.BaseDialog.DayNight"/>

</resources>