sfc界面处理完成，还差顺序逻辑控制过程

Util.DiagramDesigner/ViewModels/AdditionViewModel/DiagramServicesProvider.cs

@@ -14,6 +14,8 @@ namespace Util.DiagramDesigner
         IQuickThemeViewModel QuickThemeViewModel { get; }
         ILockObjectViewModel LockObjectViewModel { get; }
         SelectableDesignerItemViewModelBase SelectedItem { get; set; }
+        IColorViewModel CopyDefaultColorViewModel();
+        IFontViewModel CopyDefaultFontViewModel();
     }
 
 
@@ -43,6 +45,18 @@ namespace Util.DiagramDesigner
             RaisePropertyChanged(sender, e.PropertyName);
         }
 
+        public IColorViewModel CopyDefaultColorViewModel()
+        {
+            var viewModel = GetOldValue<ColorViewModel>(nameof(ColorViewModel));
+            return CopyHelper.Mapper(viewModel);
+        }
+
+        public IFontViewModel CopyDefaultFontViewModel()
+        {
+            var viewModel = GetOldValue<FontViewModel>(nameof(FontViewModel));
+            return CopyHelper.Mapper<FontViewModel, IFontViewModel>(viewModel);
+        }
+
         private IColorViewModel _colorViewModel;
         public IColorViewModel ColorViewModel
         {