code: function(type) {
  			if (this.getAnnotationTypePriority(type) === 0) return false;
  			return !this._visibleAnnotationTypes || this._visibleAnnotationTypes[type] === undefined || this._visibleAnnotationTypes[type] === true;
  		}
docs: Returns whether the receiver shows annotations of the specified type.
  
  @param {Object} type the annotation type
  @returns {Boolean} whether the specified annotation type is shown
  
  @see orion.editor.AnnotationTypeList#addAnnotationType
  @see orion.editor.AnnotationTypeList#removeAnnotationType