styles.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
	<style name="LightTheme" parent="android:Theme.Holo.Light.DarkActionBar">
        <item name="android:actionBarStyle">@style/CustomActionBar</item>
        <item name="android:windowBackground">@color/window_background</item>
    </style>
    <style name="CustomActionBar"
           parent="android:Widget.Holo.Light.ActionBar.Solid.Inverse">
        <item name="android:textColor">@color/action_bar_text</item>
        <item name="android:background">@color/action_bar_background</item>
    </style>
</resources>