Fix overdraw in FilterShow activity

        <activity

            android:name="com.android.gallery3d.filtershow.FilterShowActivity"

            android:label="@string/title_activity_filter_show"

            android:theme="@style/Theme.Gallery"

            android:theme="@style/Theme.FilterShow"

            android:configChanges="keyboardHidden|orientation|screenSize">

            <intent-filter>

                <action android:name="android.intent.action.EDIT" />

        <item name="android:colorBackground">@null</item>

        <item name="android:colorBackgroundCacheHint">@null</item>

    </style>

    <style name="Theme.FilterShow" parent="Theme.Gallery">

        <item name="android:windowBackground">@null</item>

        <item name="android:windowContentOverlay">@null</item>

    </style>

    <style name="Holo.ActionBar" parent="android:Widget.Holo.ActionBar">

        <item name="android:displayOptions">useLogo|showHome</item>

        <item name="android:background">@drawable/actionbar_translucent</item>