styles.xml

<resources><style name="MainTheme" parent="MainTheme.Base"></style><!-- Base theme applied no matter what API --><style name="MainTheme.Base" parent="Theme.AppCompat.Light.DarkActionBar"><!--If you are using revision 22.1 please use just windowNoTitle. Without android:--><item name="windowNoTitle">true</item><!--We will be using the toolbar so no need to show ActionBar--><item name="windowActionBar">false</item><!-- Set theme colors from https://aka.ms/material-colors --><!-- colorPrimary is used for the default action bar background --><item name="colorPrimary">#2196F3</item><!-- colorPrimaryDark is used for the status bar --><item name="colorPrimaryDark">#1976D2</item><!-- colorAccent is used as the default value for colorControlActivated
         which is used to tint widgets --><item name="colorAccent">#FF4081</item><!-- You can also set colorControlNormal, colorControlActivated
         colorControlHighlight and colorSwitchThumbNormal. --><item name="windowActionModeOverlay">true</item><item name="android:datePickerDialogTheme">@style/AppCompatDialogStyle</item></style><style name="AppCompatDialogStyle" parent="Theme.AppCompat.Light.Dialog"><item name="colorAccent">#FF4081</item></style></resources>