You need to create a style for ActionMode
, here's an example:
<style name="Your.ActionMode" parent="@android:style/Widget.Holo.ActionMode">
<item name="android:background">your_background</item>
<item name="android:backgroundSplit">your_split_background</item>
</style>
To apply the theme, create a new item
for android:actionModeStyle
in your root theme.