Activity:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.example.andre.myapplication.MainActivity">
    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorPrimary"
        android:minHeight="?attr/actionBarSize"
        style="@style/ToolbarTheme">
    </android.support.v7.widget.Toolbar>
</LinearLayout>
styles.xml:
<resources>
    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>
    <style name="ToolbarTheme" parent="ThemeOverlay.AppCompat.Light">
        <item name="android:textColorPrimary">@android:color/white</item>
        <item name="android:textColorSecondary">@android:color/white</item>
        <item name="android:textColor">@android:color/white</item>
    </style>
</resources>
But I still have balck title on Toolbar. Why ?