anchor.diff:  
     void _invoke([context]) {
       if (!enabled) {
  -      spark.showErrorMessage('Unable to Deploy',
  +      spark.showErrorMessage('Unable to deploy',
             message: 'Unable to deploy the current selection; please select an '
             'application to deploy.');
         return;
  
positive.code:       return new SparkJobStatus(message: 'Opened folder ${_entry.fullPath}');
      }).catchError((e) {
        spark.showErrorMessage(
            'Error opening folder ${_entry.fullPath}', exception: e);
      });
    }
  }
  
negative.code: 
      if (getAppContainerFor(_resource) == null) {
        spark.showErrorMessage(
            'Unable to publish',
            message: 'Unable to publish the current selection; '
                     'please select a Chrome App or Extension to publish.');
        return;
  