Input - Polished up UI

Input - Added events to service

src/Artemis.UI.Shared/DataModelVisualization/Shared/DataModelListViewModel.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections;
+using System.Windows.Documents;
 using Artemis.Core;
 using Artemis.Core.DataModelExpansions;
 using Artemis.UI.Shared.Services;

src/Artemis.UI.Shared/Screens/Dialogs/ConfirmDialogViewModel.cs

@@ -22,11 +22,5 @@ namespace Artemis.UI.Shared.Screens.Dialogs
             if (Session != null && !Session.IsEnded)
                 Session.Close(true);
         }
-
-        public void Cancel()
-        {
-            if (Session != null && !Session.IsEnded)
-                Session.Close(false);
-        }
     }
 }

src/Artemis.UI.Shared/Screens/GradientEditor/GradientEditorViewModel.cs

@@ -91,15 +91,14 @@ namespace Artemis.UI.Shared.Screens.GradientEditor
                 Session.Close(true);
         }
 
-        public void Cancel()
+        public override void Cancel()
         {
             // Restore the saved state
             ColorGradient.Stops.Clear();
             ColorGradient.Stops.AddRange(_originalStops);
             ColorGradient.OnColorValuesUpdated();
 
-            if (Session != null && !Session.IsEnded)
-                Session.Close(false);
+            base.Cancel();
         }
 
         private void UpdateColorStopViewModels(object? sender, PropertyChangedEventArgs e)

src/Artemis.UI.Shared/Services/Dialog/DialogViewModelBase.cs

@@ -49,6 +49,15 @@ namespace Artemis.UI.Shared.Services
         {
         }
 
+        /// <summary>
+        ///     If not yet closed, closes the current session passing <see langword="false" />
+        /// </summary>
+        public virtual void Cancel()
+        {
+            if (Session != null && !Session.IsEnded)
+                Session.Close(false);
+        }
+
         internal void OnDialogOpened(object sender, DialogOpenedEventArgs e)
         {
             Session = e.Session;