Styles.xml

<resources>

    <!-- Dark application theme. -->
    <style name="TrackdTheme.Dark" parent="Theme.AppCompat">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/darkColorPrimary</item>
        <item name="colorPrimaryDark">@color/darkColorPrimaryDark</item>
        <item name="colorAccent">@color/darkColorAccent</item>
        <item name="vectorIconTint">@color/darkColorIconColor</item>
    </style>

    <style name="TrackdTheme.Dark.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
    </style>

    <style name="TrackdTheme.Dark.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
    <style name="TrackdTheme.Dark.PopupOverlay" parent="ThemeOverlay.AppCompat" />


    <!-- Light application theme -->
    <style name="TrackdTheme.Light" parent="Theme.AppCompat.Light.DarkActionBar">
        <item name="colorPrimary">@color/darkColorPrimary</item>
        <item name="colorPrimaryDark">@color/darkColorPrimaryDark</item>
        <item name="colorAccent">@color/darkColorAccent</item>
    </style>

    <style name="TrackdTheme.Light.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
    </style>

    <style name="TrackdTheme.Light.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar"/>
    <style name="TrackdTheme.Light.PopupOverlay" parent="ThemeOverlay.AppCompat.Light"/>
</resources>


<!-- v21 -->
<resources>

    <style name="TrackdTheme.Dark.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
        <item name="android:statusBarColor">@android:color/transparent</item>
    </style>

    <style name="TrackdTheme.Light.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
        <item name="android:statusBarColor">@android:color/transparent</item>
    </style>

    <style name="TrackdTheme.Dark" parent="Theme.AppCompat">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/darkColorPrimary</item>
        <item name="colorPrimaryDark">@color/darkColorPrimaryDark</item>
        <item name="colorAccent">@color/darkColorAccent</item>
        <item name="vectorIconTint">@color/darkColorIconColor</item>

        <item name="android:windowContentTransitions">true</item>
        <!--<item name="android:windowEnterTransition">@transition/default_window_fade</item>
        <item name="android:windowExitTransition">@transition/default_window_fade</item>

        <item name="android:windowAllowEnterTransitionOverlap">true</item>
        <item name="android:windowAllowReturnTransitionOverlap">true</item>-->
    </style>
</resources>