diff --git a/v2rayN/ServiceLib/Handler/ConfigHandler.cs b/v2rayN/ServiceLib/Handler/ConfigHandler.cs
index 998c2427..dd20974f 100644
--- a/v2rayN/ServiceLib/Handler/ConfigHandler.cs
+++ b/v2rayN/ServiceLib/Handler/ConfigHandler.cs
@@ -2106,7 +2106,7 @@ public class ConfigHandler
     public static async Task<int> InitBuiltinDNS(Config config)
     {
         var items = await AppHandler.Instance.DNSItems();
-        
+
         // Check existing DNS items and disable those with empty NormalDNS
         var needsUpdate = false;
         foreach (var existingItem in items)
@@ -2117,13 +2117,13 @@ public class ConfigHandler
                 needsUpdate = true;
             }
         }
-        
+
         // Update items if any changes were made
         if (needsUpdate)
         {
             await SQLiteHelper.Instance.UpdateAllAsync(items);
         }
-        
+
         if (items.Count <= 0)
         {
             var item = new DNSItem()
diff --git a/v2rayN/ServiceLib/Handler/Fmt/AnytlsFmt.cs b/v2rayN/ServiceLib/Handler/Fmt/AnytlsFmt.cs
index 3f1d40dc..f175ce82 100644
--- a/v2rayN/ServiceLib/Handler/Fmt/AnytlsFmt.cs
+++ b/v2rayN/ServiceLib/Handler/Fmt/AnytlsFmt.cs
@@ -1,6 +1,5 @@
-using static QRCoder.PayloadGenerator;
-
 namespace ServiceLib.Handler.Fmt;
+
 public class AnytlsFmt : BaseFmt
 {
     public static ProfileItem? Resolve(string str, out string msg)
diff --git a/v2rayN/ServiceLib/Models/SingboxConfig.cs b/v2rayN/ServiceLib/Models/SingboxConfig.cs
index 30478174..a5eec4ae 100644
--- a/v2rayN/ServiceLib/Models/SingboxConfig.cs
+++ b/v2rayN/ServiceLib/Models/SingboxConfig.cs
@@ -240,10 +240,13 @@ public class Server4Sbox : BaseServer4Sbox
     public int? server_port { get; set; }
     public string? path { get; set; }
     public Headers4Sbox? headers { get; set; }
+
     // public List<string>? path { get; set; } // hosts
     public Dictionary<string, List<string>>? predefined { get; set; }
+
     // Deprecated
     public string? address { get; set; }
+
     public string? address_resolver { get; set; }
     public string? address_strategy { get; set; }
     public string? strategy { get; set; }
diff --git a/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs b/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs
index b26f6336..6ea20a20 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs
@@ -1,11 +1,6 @@
-using System.Collections.Generic;
 using System.Data;
 using System.Net;
 using System.Net.NetworkInformation;
-using System.Reactive;
-using System.Text;
-using DynamicData;
-using ServiceLib.Models;
 
 namespace ServiceLib.Services.CoreConfig;
 
diff --git a/v2rayN/v2rayN.Desktop/Views/DNSSettingWindow.axaml b/v2rayN/v2rayN.Desktop/Views/DNSSettingWindow.axaml
index 23ebe9fb..9ec377ff 100644
--- a/v2rayN/v2rayN.Desktop/Views/DNSSettingWindow.axaml
+++ b/v2rayN/v2rayN.Desktop/Views/DNSSettingWindow.axaml
@@ -39,7 +39,7 @@
             <TabItem Header="{x:Static resx:ResUI.ThBasicDNSSettings}">
                 <ScrollViewer VerticalScrollBarVisibility="Visible">
                     <Grid
-                        Margin="{StaticResource Margin4}"
+                        Margin="{StaticResource Margin8}"
                         ColumnDefinitions="Auto,Auto,*"
                         RowDefinitions="Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto">
 
@@ -50,7 +50,7 @@
                             Margin="{StaticResource Margin4}"
                             VerticalAlignment="Center"
                             Text="{x:Static resx:ResUI.TbCustomDNSEnabledPageInvalid}" />
-                        
+
                         <TextBlock
                             Grid.Row="1"
                             Grid.Column="0"
@@ -186,7 +186,7 @@
             <TabItem Header="{x:Static resx:ResUI.ThAdvancedDNSSettings}">
                 <ScrollViewer VerticalScrollBarVisibility="Visible">
                     <Grid
-                        Margin="{StaticResource Margin4}"
+                        Margin="{StaticResource Margin8}"
                         ColumnDefinitions="Auto,Auto,*"
                         RowDefinitions="Auto,Auto,Auto,Auto,Auto,Auto,*">
 
@@ -284,13 +284,14 @@
                             Grid.ColumnSpan="3"
                             Margin="{StaticResource Margin4}"
                             VerticalAlignment="Stretch"
-                            Watermark="{x:Static resx:ResUI.TbDNSHostsConfig}"
                             BorderThickness="1"
                             Classes="TextArea"
-                            TextWrapping="Wrap" />
+                            TextWrapping="Wrap"
+                            Watermark="{x:Static resx:ResUI.TbDNSHostsConfig}" />
                     </Grid>
                 </ScrollViewer>
             </TabItem>
+
             <TabItem Header="{x:Static resx:ResUI.TbSettingsCoreDns}">
                 <DockPanel Margin="{StaticResource Margin8}">
                     <Grid DockPanel.Dock="Top">
@@ -298,7 +299,7 @@
                             <RowDefinition Height="Auto" />
                             <RowDefinition Height="Auto" />
                         </Grid.RowDefinitions>
-                        
+
                         <StackPanel Grid.Row="0" Orientation="Horizontal">
                             <TextBlock
                                 Margin="{StaticResource Margin4}"
@@ -309,7 +310,7 @@
                                 Margin="{StaticResource Margin4}"
                                 HorizontalAlignment="Left" />
                         </StackPanel>
-                        
+
                         <StackPanel Grid.Row="1" Orientation="Horizontal">
                             <TextBlock
                                 Margin="{StaticResource Margin4}"
@@ -387,7 +388,7 @@
                             <RowDefinition Height="Auto" />
                             <RowDefinition Height="Auto" />
                         </Grid.RowDefinitions>
-                        
+
                         <StackPanel Grid.Row="0" Orientation="Horizontal">
                             <TextBlock
                                 Margin="{StaticResource Margin4}"
@@ -398,7 +399,7 @@
                                 Margin="{StaticResource Margin4}"
                                 HorizontalAlignment="Left" />
                         </StackPanel>
-                        
+
                         <StackPanel Grid.Row="1" Orientation="Horizontal">
                             <TextBlock Margin="{StaticResource Margin4}" VerticalAlignment="Center">
                                 <HyperlinkButton Classes="WithIcon" Click="linkDnsSingboxObjectDoc_Click">
diff --git a/v2rayN/v2rayN/Views/ClashConnectionsView.xaml b/v2rayN/v2rayN/Views/ClashConnectionsView.xaml
index 35a93411..0e6ba6a7 100644
--- a/v2rayN/v2rayN/Views/ClashConnectionsView.xaml
+++ b/v2rayN/v2rayN/Views/ClashConnectionsView.xaml
@@ -1,11 +1,11 @@
 <reactiveui:ReactiveUserControl
     x:Class="v2rayN.Views.ClashConnectionsView"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
-    xmlns:reactiveui="http://reactiveui.net"
-    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:reactiveui="http://reactiveui.net"
     xmlns:resx="clr-namespace:ServiceLib.Resx;assembly=ServiceLib"
     xmlns:vms="clr-namespace:ServiceLib.ViewModels;assembly=ServiceLib"
     d:DesignHeight="450"
diff --git a/v2rayN/v2rayN/Views/ClashProxiesView.xaml b/v2rayN/v2rayN/Views/ClashProxiesView.xaml
index e47388d0..ca87e098 100644
--- a/v2rayN/v2rayN/Views/ClashProxiesView.xaml
+++ b/v2rayN/v2rayN/Views/ClashProxiesView.xaml
@@ -1,14 +1,14 @@
 <reactiveui:ReactiveUserControl
     x:Class="v2rayN.Views.ClashProxiesView"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
-    xmlns:reactiveui="http://reactiveui.net"
-    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:converters="clr-namespace:v2rayN.Converters"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:reactiveui="http://reactiveui.net"
     xmlns:resx="clr-namespace:ServiceLib.Resx;assembly=ServiceLib"
     xmlns:vms="clr-namespace:ServiceLib.ViewModels;assembly=ServiceLib"
-    xmlns:converters="clr-namespace:v2rayN.Converters"
     d:DesignHeight="450"
     d:DesignWidth="800"
     x:TypeArguments="vms:ClashProxiesViewModel"
diff --git a/v2rayN/v2rayN/Views/DNSSettingWindow.xaml b/v2rayN/v2rayN/Views/DNSSettingWindow.xaml
index 9098fe43..c90c019f 100644
--- a/v2rayN/v2rayN/Views/DNSSettingWindow.xaml
+++ b/v2rayN/v2rayN/Views/DNSSettingWindow.xaml
@@ -83,8 +83,8 @@
                             Grid.Row="1"
                             Grid.Column="1"
                             Width="200"
-                            IsEditable="True"
                             Margin="{StaticResource Margin8}"
+                            IsEditable="True"
                             Style="{StaticResource DefComboBox}" />
 
                         <TextBlock
@@ -99,8 +99,8 @@
                             Grid.Row="2"
                             Grid.Column="1"
                             Width="200"
-                            IsEditable="True"
                             Margin="{StaticResource Margin8}"
+                            IsEditable="True"
                             Style="{StaticResource DefComboBox}" />
 
                         <TextBlock
@@ -115,8 +115,8 @@
                             Grid.Row="3"
                             Grid.Column="1"
                             Width="200"
-                            IsEditable="True"
                             Margin="{StaticResource Margin8}"
+                            IsEditable="True"
                             Style="{StaticResource DefComboBox}" />
                         <TextBlock
                             Grid.Row="3"
@@ -138,8 +138,8 @@
                             Grid.Row="4"
                             Grid.Column="1"
                             Width="200"
-                            IsEditable="True"
                             Margin="{StaticResource Margin8}"
+                            IsEditable="True"
                             Style="{StaticResource DefComboBox}" />
                         <TextBlock
                             Grid.Row="4"
@@ -304,7 +304,6 @@
                             Style="{StaticResource ToolbarTextBlock}"
                             Text="{x:Static resx:ResUI.TbPreventDNSLeaks}" />
 
-
                         <TextBlock
                             Grid.Row="4"
                             Grid.Column="0"
@@ -317,8 +316,8 @@
                             Grid.Row="4"
                             Grid.Column="1"
                             Width="200"
-                            IsEditable="True"
                             Margin="{StaticResource Margin8}"
+                            IsEditable="True"
                             Style="{StaticResource DefComboBox}" />
                         <TextBlock
                             Grid.Row="4"
@@ -360,19 +359,19 @@
                             <RowDefinition Height="Auto" />
                             <RowDefinition Height="Auto" />
                         </Grid.RowDefinitions>
-                        
+
                         <StackPanel Grid.Row="0" Orientation="Horizontal">
                             <TextBlock
-                                    Margin="{StaticResource Margin8}"
-                                    VerticalAlignment="Center"
-                                    Style="{StaticResource ToolbarTextBlock}"
-                                    Text="{x:Static resx:ResUI.TbCustomDNSEnable}" />
+                                Margin="{StaticResource Margin8}"
+                                VerticalAlignment="Center"
+                                Style="{StaticResource ToolbarTextBlock}"
+                                Text="{x:Static resx:ResUI.TbCustomDNSEnable}" />
                             <ToggleButton
-                                    x:Name="togRayCustomDNSEnableCompatible"
-                                    Margin="{StaticResource Margin8}"
-                                    HorizontalAlignment="Left" />
+                                x:Name="togRayCustomDNSEnableCompatible"
+                                Margin="{StaticResource Margin8}"
+                                HorizontalAlignment="Left" />
                         </StackPanel>
-                        
+
                         <StackPanel Grid.Row="1" Orientation="Horizontal">
                             <TextBlock
                                 Margin="{StaticResource Margin8}"
@@ -458,19 +457,19 @@
                             <RowDefinition Height="Auto" />
                             <RowDefinition Height="Auto" />
                         </Grid.RowDefinitions>
-                        
+
                         <StackPanel Grid.Row="0" Orientation="Horizontal">
                             <TextBlock
-                                    Margin="{StaticResource Margin8}"
-                                    VerticalAlignment="Center"
-                                    Style="{StaticResource ToolbarTextBlock}"
-                                    Text="{x:Static resx:ResUI.TbCustomDNSEnable}" />
+                                Margin="{StaticResource Margin8}"
+                                VerticalAlignment="Center"
+                                Style="{StaticResource ToolbarTextBlock}"
+                                Text="{x:Static resx:ResUI.TbCustomDNSEnable}" />
                             <ToggleButton
-                                    x:Name="togSBCustomDNSEnableCompatible"
-                                    Margin="{StaticResource Margin8}"
-                                    HorizontalAlignment="Left" />
+                                x:Name="togSBCustomDNSEnableCompatible"
+                                Margin="{StaticResource Margin8}"
+                                HorizontalAlignment="Left" />
                         </StackPanel>
-                        
+
                         <StackPanel Grid.Row="1" Orientation="Horizontal">
                             <TextBlock
                                 Margin="{StaticResource Margin8}"
diff --git a/v2rayN/v2rayN/Views/StatusBarView.xaml b/v2rayN/v2rayN/Views/StatusBarView.xaml
index c58e8326..d337c4cd 100644
--- a/v2rayN/v2rayN/Views/StatusBarView.xaml
+++ b/v2rayN/v2rayN/Views/StatusBarView.xaml
@@ -92,8 +92,7 @@
                         AutomationProperties.Name="{x:Static resx:ResUI.menuRouting}"
                         DisplayMemberPath="Remarks"
                         FontSize="{DynamicResource StdFontSize}"
-                        Style="{StaticResource MaterialDesignFloatingHintComboBox}">
-                    </ComboBox>
+                        Style="{StaticResource MaterialDesignFloatingHintComboBox}" />
                 </StackPanel>
 
                 <StackPanel Margin="{StaticResource MarginLeftRight8}" VerticalAlignment="Center">
@@ -185,8 +184,7 @@
                                     AutomationProperties.Name="{x:Static resx:ResUI.menuRouting}"
                                     DisplayMemberPath="Remarks"
                                     FontSize="{DynamicResource StdFontSize}"
-                                    Style="{StaticResource MaterialDesignFilledComboBox}">
-                                </ComboBox>
+                                    Style="{StaticResource MaterialDesignFilledComboBox}" />
                             </DockPanel>
                         </MenuItem.Header>
                     </MenuItem>
@@ -200,8 +198,7 @@
                                     AutomationProperties.Name="{x:Static resx:ResUI.menuServers}"
                                     DisplayMemberPath="Text"
                                     FontSize="{DynamicResource StdFontSize}"
-                                    Style="{StaticResource MaterialDesignFilledComboBox}">
-                                </ComboBox>
+                                    Style="{StaticResource MaterialDesignFilledComboBox}" />
                             </DockPanel>
                         </MenuItem.Header>
                     </MenuItem>