Profile editor - Fixed new elements not rendering while paused

Profile editor - Use default brush on new layers
Profile tree - Implement drag & drop

src/Artemis.Core/Models/Profile/Folder.cs

@@ -185,7 +185,7 @@ namespace Artemis.Core
             // No point rendering if all children are disabled
             if (!Children.Any(c => c is RenderProfileElement {Enabled: true}))
                 return;
-            
+
             SKPaint layerPaint = new() {FilterQuality = SKFilterQuality.Low};
             try
             {
@@ -266,7 +266,7 @@ namespace Artemis.Core
         ///     Occurs when a property affecting the rendering properties of this folder has been updated
         /// </summary>
         public event EventHandler? RenderPropertiesUpdated;
-        
+
         /// <inheritdoc />
         protected override void Dispose(bool disposing)
         {

src/Artemis.Core/Services/Registration/Interfaces/ILayerBrushService.cs

@@ -27,5 +27,7 @@ namespace Artemis.Core.Services
         /// Returns the descriptor of the default layer brush
         /// </summary>
         LayerBrushDescriptor? GetDefaultLayerBrush();
+
+        void ApplyDefaultBrush(Layer layer);
     }
 }

src/Artemis.Core/Services/Registration/LayerBrushService.cs

@@ -46,5 +46,13 @@ namespace Artemis.Core.Services
             defaultReference.Value.BrushType ??= "SolidBrush";
             return LayerBrushStore.Get(defaultReference.Value.LayerBrushProviderId, defaultReference.Value.BrushType)?.LayerBrushDescriptor;
         }
+
+        /// <inheritdoc />
+        public void ApplyDefaultBrush(Layer layer)
+        {
+            LayerBrushDescriptor? brush = GetDefaultLayerBrush();
+            if (brush != null)
+                layer.ChangeLayerBrush(brush.CreateInstance(layer, null));
+        }
     }
 }