/// <summary>
 ///     Initializes a new instance of the <see cref="PreferencesViewModel" /> class.
 /// </summary>
 /// <param name="eventAggregator">The event aggregator.</param>
 /// <param name="options">The options.</param>
 /// <param name="category">The category.</param>
 public PreferencesViewModel(IEventAggregator eventAggregator, IConverterOptions options,
     IPreferenceCategory category)
     : base(eventAggregator, options)
 {
     Category = category;
 }
 /// <summary>
 ///     Initializes a new instance of the <see cref="PreferencesViewModel" /> class.
 /// </summary>
 /// <param name="eventAggregator">The event aggregator.</param>
 /// <param name="options">The options.</param>
 /// <param name="category">The category.</param>
 public PreferencesViewModel(IEventAggregator eventAggregator, IConverterOptions options,
                             IPreferenceCategory category)
     : base(eventAggregator, options)
 {
     Category = category;
 }