添加ico格式的自定义图标支持

v2rayN/v2rayN/Views/RoutingRuleSettingWindow.xaml.cs

@@ -132,10 +132,10 @@ namespace v2rayN.Views
         private void btnBrowse_Click(object sender, System.Windows.RoutedEventArgs e)
         {
             var openFileDialog1 = new OpenFileDialog();
-            openFileDialog1.Filter = "PNG|*.png";
+            openFileDialog1.Filter = "PNG,ICO|*.png;*.ico";
             openFileDialog1.ShowDialog();
 
             txtCustomIcon.Text = openFileDialog1.FileName;
         }
     }
-}
+}