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copied!<p>To override <code>ActionBarSherlock</code> themes you should proceed like this:</p> <p>Open <code>values/abs__themes.xml</code> from <code>ActionBarSherlock</code> library project. You see for example:</p> <pre><code><style name="Theme.Sherlock" parent="Sherlock.__Theme">  <item name="actionDropDownStyle">@style/Widget.Sherlock.Spinner.DropDown.ActionBar</item> <item name="actionButtonStyle">@style/Widget.Sherlock.ActionButton</item> <item name="actionOverflowButtonStyle">@style/Widget.Sherlock.ActionButton.Overflow</item> <item name="actionModeBackground">@drawable/abs__cab_background_top_holo_dark</item> <item name="actionModeSplitBackground">@drawable/abs__cab_background_bottom_holo_dark</item> <item name="actionModeCloseDrawable">@drawable/abs__ic_cab_done_holo_dark</item> <item name="actionBarTabStyle">@style/Widget.Sherlock.ActionBar.TabView</item> ... // Here is what you wanted <item name="actionBarItemBackground">@drawable/abs__item_background_holo_dark</item> ... </code></pre> <p>When you have found the item you want to customize (<code>actionBarItemBackground</code> in your case), you create your own <code>themes.xml</code> inside your project, and add in it:</p> <pre><code><style name="Custom.Theme.Sherlock" parent="@style/Theme.Sherlock"> <item name="actionBarItemBackground">@drawable/my__item_background_holo_dark</item> </style> </code></pre> <p>This overrides the default <code>Theme.Sherlock</code>, setting a custom <code>actionBarItemBackground</code>.</p> <p>Now, instead of using <code>Theme.Sherlock</code> in your activity you should use <code>setTheme(R.style.Custom_Theme_Sherlock)</code>. You may also want to override the other two themes (<code>Theme.Sherlock.Light</code> and <code>Theme.Sherlock.Light.DarkActionBar</code>)</p> <p>One more tip, here is the drawable selector used by <code>ActionBarSherlock</code> for the default action item background (in holo_light), it uses 9-patch png drawables:</p> <pre><code><selector xmlns:android="http://schemas.android.com/apk/res/android">  <item android:state_focused="true" android:state_enabled="false" android:state_pressed="true" android:drawable="@drawable/abs__list_selector_disabled_holo_light" /> <item android:state_focused="true" android:state_enabled="false" android:drawable="@drawable/abs__list_selector_disabled_holo_light" /> <item android:state_focused="true" android:state_pressed="true" android:drawable="@drawable/abs__list_selector_background_transition_holo_light" /> <item android:state_focused="false" android:state_pressed="true" android:drawable="@drawable/abs__list_selector_background_transition_holo_light" /> <item android:state_focused="true" android:drawable="@drawable/abs__list_focused_holo" /> <item android:drawable="@android:color/transparent" /> </code></pre> <p></p> <hr> <p>For other basic customizing, you can use this <a href="http://jgilfelt.github.com/android-actionbarstylegenerator/#name=example&compat=holo&theme=light&actionbarstyle=solid&backColor=E4E4E4,100&secondaryColor=D6D6D6,100&tertiaryColor=F2F2F2,100&accentColor=33B5E5,100">tool</a>, it generates styles for you.</p>

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