Data bindings - Fix crash when removing color gradient stops

src/Artemis.Core/Models/Profile/DataBindings/DataBindingRegistration.cs

@@ -64,5 +64,15 @@ namespace Artemis.Core
             DataBinding = new DataBinding<TLayerProperty, TProperty>(LayerProperty, dataBinding);
             return DataBinding;
         }
+
+        /// <inheritdoc />
+        public void ClearDataBinding()
+        {
+            if (DataBinding == null)
+                return;
+
+            // The related entity is left behind, just in case the data binding is added back later
+            LayerProperty.DisableDataBinding(DataBinding);
+        }
     }
 }

src/Artemis.Core/Models/Profile/DataBindings/IDataBindingRegistration.cs

@@ -20,5 +20,10 @@
         /// </summary>
         /// <returns></returns>
         IDataBinding? CreateDataBinding();
+
+        /// <summary>
+        ///     If present, removes the current data binding
+        /// </summary>
+        void ClearDataBinding();
     }
 }

src/Artemis.Core/Models/Profile/LayerProperties/LayerProperty.cs

@@ -420,6 +420,14 @@ namespace Artemis.Core
             DataBindingRegistration<T, TProperty> registration = new(this, converter, getter, setter, displayName);
             _dataBindingRegistrations.Add(registration);
 
+            // If not yet initialized, load the data binding related to the registration if available 
+            if (_isInitialized)
+            {
+                IDataBinding? dataBinding = registration.CreateDataBinding();
+                if (dataBinding != null)
+                    _dataBindings.Add(dataBinding);
+            }
+
             OnDataBindingPropertyRegistered();
             return registration;
         }
@@ -432,7 +440,10 @@ namespace Artemis.Core
             if (_disposed)
                 throw new ObjectDisposedException("LayerProperty");
 
+            foreach (IDataBindingRegistration dataBindingRegistration in _dataBindingRegistrations) 
+                dataBindingRegistration.ClearDataBinding();
             _dataBindingRegistrations.Clear();
+            
             OnDataBindingPropertiesCleared();
         }
 

src/Artemis.UI.Shared/Controls/DeviceVisualizer.cs

@@ -295,7 +295,7 @@ namespace Artemis.UI.Shared
         {
             Execute.PostToUIThread(SetupForDevice);
         }
-        
+
         private void Render()
         {
             DrawingContext drawingContext = _backingStore.Open();

src/Artemis.UI.Shared/Controls/DeviceVisualizerLed.cs

@@ -51,7 +51,6 @@ namespace Artemis.UI.Shared
             byte g = Led.RgbLed.Color.GetG();
             byte b = Led.RgbLed.Color.GetB();
 
-            _renderColor.A = (byte) (isDimmed ? 100 : 255);
             _renderColor.A = isDimmed ? Dimmed : NonDimmed;
             _renderColor.R = r;
             _renderColor.G = g;