AI 147812: close <em> tag

    <!-- Special variation on the default theme that ensures the background is

         completely black.  This is useful for things like image viewers and

         media players.   If you want the normal (dark background) theme

         do <em>not<em> use this, use {@link #Theme}. -->

         do <em>not</em> use this, use {@link #Theme}. -->

    <style name="Theme.Black">

        <item name="android:windowBackground">@android:color/black</item>

        <item name="android:colorBackground">@android:color/black</item>