Unexpected effect of Holo Light Theme of my action bar
<p>I have used XML to define the Theme of the action bar for my Main activity to be as follows:</p>

<pre><code>&lt;style name="AppTheme" parent="@android:style/Theme.Holo.Light" /&gt;

&lt;style name="HomeTheme" 
    parent="@style/AppTheme"&gt;
    &lt;item name="android:actionBarStyle"&gt;@style/HomeActionBarStyle&lt;/item&gt;
&lt;/style&gt;

 &lt;style name="HomeActionBarStyle" 
    parent="@android:style/Widget.Holo.ActionBar"&gt;
    &lt;item name="android:displayOptions"&gt;showHome|showTitle&lt;/item&gt;
&lt;/style&gt;
</code></pre>

<p>Then in my Manifest file I have set the Theme of my activity with the defined Theme :</p>

<pre><code>&lt;activity
....
android:theme="@style/HomeTheme"
....
&lt;/activity&gt;
</code></pre>

<p>everything went file as expected except two thing:
1) the border line of the action bar area is still blue 
2) the background color of the action bar area is white not grey.</p>

<p>I am not sure what could be my mistake or this is just a bug in my emulator?
I need to solve the previous two points just to have beautiful GUI</p>
