packages/VpnDialogs/AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
        package="com.android.vpndialogs"
        android:sharedUserId="android.uid.system">

    <application android:label="VpnDialogs">
        <activity android:name=".ConfirmDialog"
                android:theme="@style/transparent">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.DEFAULT"/>
            </intent-filter>
        </activity>

        <activity android:name=".ManageDialog"
                android:theme="@style/transparent"
                android:noHistory="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.DEFAULT"/>
            </intent-filter>
        </activity>
    </application>
</manifest>