添加项目文件。

Wpf.Ui.Extend/Converters/ColorToBrushConverter.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Data;
+using System.Windows.Media;
+
+namespace Wpf.Ui.Extend.Converters;
+public class ColorToBrushConverter : IValueConverter
+{
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        //var color = (SelectedColor)value;
+        if (value is System.Windows.Media.Color color)
+        {
+            return new SolidColorBrush(color);
+        }
+        return Binding.DoNothing;
+    }
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+    {
+        throw new NotImplementedException();
+    }
+}