I am using this as the theme.
<style name="ThemeSelector" parent="android:Theme.Light">
<item name="android:windowTitleBackgroundStyle">@style/WindowTitleBackground</item>
<item name="android:textAppearance">@style/TitleTextColor</item>
</style>
<style name="WindowTitleBackground">
<item name="android:background">@drawable/waterblue</item>
</style>
<style name="TitleTextColor">
<item name="android:textColor">@color/white</item>
</style>
With this background image is got assigned but text color is not changing.
In manifest I am using like this.
<application
android:name="com.example"
android:allowBackup="true"
android:icon="@drawable/logo"
android:label="@string/app_name"
android:theme="@style/ThemeSelector">
This is worked for me.