Define custom Logo for ActionBar (different than Logo) in XML?

Just set a value for the android:icon attribute

<style name="AppTheme" parent="@android:style/Theme.Holo.Light">        <item name="android:actionBarStyle">@style/AppTheme.ActionBarStyle</item></style><style name="AppTheme.ActionBarStyle" parent="android:style/Widget.Holo.Light.ActionBar">        <item name="android:background">@drawable/actionbar_background</item>        <item name="android:titleTextStyle">@style/AppTheme.ActionBar.TitleTextStyle</item>        <item name="android:icon">@drawable/ic_home</item>        <item name="android:indeterminateProgressStyle">@style/IndeterminateProgress</item></style>

You don't style the logo in the your style XML, you simply use android:logo in your Manifest, then use setDisplayUseLogoEnabled() to set it in the ActionBar. Here's a project, from Google, that shows you how to switch between the two. http://code.google.com/p/styled-action-bar/

Sounds like you need to use a custom layout for the action bar, that way you can define a whatever you want for logo image.

Action bar / ActionbarSherlock style

    <style name="ActionBar" parent="Widget.Sherlock.Light.ActionBar.Solid.Inverse">  <item name="displayOptions">showCustom</item>  <item name="android:displayOptions">showCustom</item>   <item name="customNavigationLayout">@layout/action_bar_home_icon_default</item>   <item name="android:customNavigationLayout">@layout/action_bar_home_icon_default</item>  </style>

@layout/action_bar_home_icon_default is your custom layout, with your custom logo