title: Google glass Immersive app icon doesn't show
body: <p>My app icon has disappeared, I've sourced it to the activity alias's I am using.  I want them to display as sub menu voice commands so in the manifest I've added the VOICE_TRIGGER action. When I remove this the icon re-appears. </p>
  
  <p>Any ideas for a work around?</p>
  
  <p>Here'a an example of an alias:</p>
  
  <pre><code>    &lt;activity-alias
          android:label="@string/do_thing"
          android:name="@string/do_thing"
          android:theme="@android:style/Theme.DeviceDefault"
          android:immersive="true"
          android:targetActivity="com.x.MainActivity" &gt;
          &lt;intent-filter&gt;
              &lt;action android:name="android.intent.action.MAIN" /&gt;
              &lt;action android:name="com.google.android.glass.action.VOICE_TRIGGER" /&gt;
          &lt;/intent-filter&gt;
  
          &lt;meta-data
              android:name="com.google.android.glass.VoiceTrigger"
              android:resource="@xml/voice_trigger" /&gt;
      &lt;/activity-alias&gt;
  </code></pre>