Fixed background Layer color after delete redo

PixiEditor/Models/Undo/StorageBasedChange.cs

@@ -90,6 +90,7 @@ namespace PixiEditor.Models.Undo
                     IsActive = storedLayer.IsActive,
                     Width = storedLayer.Width,
                     Height = storedLayer.Height,
+                    LayerHighlightColor = storedLayer.LayerHighlightColor                    
                 };
                 layers[i].ChangeGuid(storedLayer.LayerGuid);
 

PixiEditor/Models/Undo/UndoLayer.cs

@@ -10,6 +10,8 @@ namespace PixiEditor.Models.Undo
 
         public Guid LayerGuid { get; init; }
 
+        public string LayerHighlightColor { get; set; }
+
         public string Name { get; set; }
 
         public int LayerIndex { get; set; }
@@ -47,6 +49,7 @@ namespace PixiEditor.Models.Undo
             Opacity = layer.Opacity;
             IsActive = layer.IsActive;
             LayerGuid = layer.LayerGuid;
+            LayerHighlightColor = layer.LayerHighlightColor;
         }
     }
 }