The Tor Browser / file revision

 <?xml version="1.0" encoding="utf-8"?>

 <!-- This Source Code Form is subject to the terms of the Mozilla Public

    - License, v. 2.0. If a copy of the MPL was not distributed with this

    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->

 <merge xmlns:android="http://schemas.android.com/apk/res/android">

     <ImageButton android:id="@+id/add_tab"

                  android:layout_width="fill_parent"

                  android:layout_height="@dimen/browser_toolbar_height"

                  android:padding="14dip"

                  android:src="@drawable/tab_new_level"

                  android:contentDescription="@string/new_tab"

                  android:background="@drawable/action_bar_button_inverse"

                  android:gravity="center"/>

 </merge>