diff --git a/butterflow-ui/BoolVisibilityConverter.cs b/butterflow-ui/BoolVisibilityConverter.cs
index 506f229..035962a 100644
--- a/butterflow-ui/BoolVisibilityConverter.cs
+++ b/butterflow-ui/BoolVisibilityConverter.cs
@@ -9,9 +9,21 @@ using System.Windows.Data;
 
 namespace butterflow_ui
 {
+    /// <summary> A visibility converter. </summary>
     [ValueConversion(typeof(bool), typeof(Visibility))]
     public class BoolVisibilityConverter : IValueConverter
     {
+        /// <summary> Converts a value. </summary>
+        /// <exception cref="InvalidCastException"> Thrown when an object cannot be cast to a required
+        ///                                         type. </exception>
+        /// <param name="value">      The value produced by the binding source. </param>
+        /// <param name="targetType"> The type of the binding target property. </param>
+        /// <param name="parameter">  The converter parameter to use. </param>
+        /// <param name="culture">    The culture to use in the converter. </param>
+        /// <returns>
+        /// A converted value. If the method returns <see langword="null" />, the valid null value is
+        /// used.
+        /// </returns>
         public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
         {
             if (targetType == typeof(Visibility))
@@ -22,6 +34,17 @@ namespace butterflow_ui
             throw new InvalidCastException(string.Format("Cannot convert type to {0} from bool.", targetType.Name));
         }
 
+        /// <summary> Converts a value. </summary>
+        /// <exception cref="InvalidCastException"> Thrown when an object cannot be cast to a required
+        ///                                         type. </exception>
+        /// <param name="value">      The value that is produced by the binding target. </param>
+        /// <param name="targetType"> The type to convert to. </param>
+        /// <param name="parameter">  The converter parameter to use. </param>
+        /// <param name="culture">    The culture to use in the converter. </param>
+        /// <returns>
+        /// A converted value. If the method returns <see langword="null" />, the valid null value is
+        /// used.
+        /// </returns>
         public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
         {
             if (targetType == typeof(Visibility))
diff --git a/butterflow-ui/InverseBoolVisibilityConverter.cs b/butterflow-ui/InverseBoolVisibilityConverter.cs
index 50b9131..a1cf12d 100644
--- a/butterflow-ui/InverseBoolVisibilityConverter.cs
+++ b/butterflow-ui/InverseBoolVisibilityConverter.cs
@@ -9,9 +9,21 @@ using System.Windows.Data;
 
 namespace butterflow_ui
 {
+    /// <summary> An inverse bool visibility converter. </summary>
     [ValueConversion(typeof(bool), typeof(Visibility))]
     public class InverseBoolVisibilityConverter : IValueConverter
     {
+        /// <summary> Converts a value. </summary>
+        /// <exception cref="InvalidCastException"> Thrown when an object cannot be cast to a required
+        ///                                         type. </exception>
+        /// <param name="value">      The value produced by the binding source. </param>
+        /// <param name="targetType"> The type of the binding target property. </param>
+        /// <param name="parameter">  The converter parameter to use. </param>
+        /// <param name="culture">    The culture to use in the converter. </param>
+        /// <returns>
+        /// A converted value. If the method returns <see langword="null" />, the valid null value is
+        /// used.
+        /// </returns>
         public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
         {
             if (targetType == typeof(Visibility))
@@ -22,6 +34,17 @@ namespace butterflow_ui
             throw new InvalidCastException(string.Format("Cannot convert type to {0} from bool.", targetType.Name));
         }
 
+        /// <summary> Converts a value. </summary>
+        /// <exception cref="InvalidCastException"> Thrown when an object cannot be cast to a required
+        ///                                         type. </exception>
+        /// <param name="value">      The value that is produced by the binding target. </param>
+        /// <param name="targetType"> The type to convert to. </param>
+        /// <param name="parameter">  The converter parameter to use. </param>
+        /// <param name="culture">    The culture to use in the converter. </param>
+        /// <returns>
+        /// A converted value. If the method returns <see langword="null" />, the valid null value is
+        /// used.
+        /// </returns>
         public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
         {
             if (targetType == typeof(Visibility))