diff --git a/v2rayN/v2rayN.Desktop/Assets/GlobalStyles.axaml b/v2rayN/v2rayN.Desktop/Assets/GlobalStyles.axaml
index 40337f61..6a2cfacd 100644
--- a/v2rayN/v2rayN.Desktop/Assets/GlobalStyles.axaml
+++ b/v2rayN/v2rayN.Desktop/Assets/GlobalStyles.axaml
@@ -22,4 +22,8 @@
     <Style Selector="ScrollViewer">
         <Setter Property="AllowAutoHide" Value="False" />
     </Style>
+
+    <Style Selector="TabControl">
+        <Setter Property="Theme" Value="{StaticResource LineTabControl}" />
+    </Style>
 </Styles>
diff --git a/v2rayN/v2rayN.Desktop/Views/DNSSettingWindow.axaml b/v2rayN/v2rayN.Desktop/Views/DNSSettingWindow.axaml
index c9cf690b..18f294d3 100644
--- a/v2rayN/v2rayN.Desktop/Views/DNSSettingWindow.axaml
+++ b/v2rayN/v2rayN.Desktop/Views/DNSSettingWindow.axaml
@@ -59,7 +59,7 @@
                             x:Name="cmbDirectDNS"
                             Grid.Row="1"
                             Grid.Column="1"
-                            Width="200"
+                            Width="300"
                             Margin="{StaticResource Margin4}"
                             Text="{Binding DirectDNS, Mode=TwoWay}" />
 
@@ -73,7 +73,7 @@
                             x:Name="cmbRemoteDNS"
                             Grid.Row="2"
                             Grid.Column="1"
-                            Width="200"
+                            Width="300"
                             Margin="{StaticResource Margin4}"
                             Text="{Binding RemoteDNS, Mode=TwoWay}" />
 
@@ -87,7 +87,7 @@
                             x:Name="cmbSBResolverDNS"
                             Grid.Row="3"
                             Grid.Column="1"
-                            Width="200"
+                            Width="300"
                             Margin="{StaticResource Margin4}"
                             Text="{Binding SingboxOutboundsResolveDNS, Mode=TwoWay}" />
                         <TextBlock
@@ -108,7 +108,7 @@
                             x:Name="cmbSBFinalResolverDNS"
                             Grid.Row="4"
                             Grid.Column="1"
-                            Width="200"
+                            Width="300"
                             Margin="{StaticResource Margin4}"
                             Text="{Binding SingboxFinalResolveDNS, Mode=TwoWay}" />
                         <TextBlock
diff --git a/v2rayN/v2rayN.Desktop/Views/RoutingSettingWindow.axaml b/v2rayN/v2rayN.Desktop/Views/RoutingSettingWindow.axaml
index bf15ab13..669c17ff 100644
--- a/v2rayN/v2rayN.Desktop/Views/RoutingSettingWindow.axaml
+++ b/v2rayN/v2rayN.Desktop/Views/RoutingSettingWindow.axaml
@@ -130,10 +130,6 @@
                             Width="*"
                             Binding="{Binding Url}"
                             Header="{x:Static resx:ResUI.LvUrl}" />
-                        <DataGridTextColumn
-                            Width="300"
-                            Binding="{Binding CustomIcon}"
-                            Header="{x:Static resx:ResUI.LvCustomIcon}" />
                     </DataGrid.Columns>
                 </DataGrid>
             </TabItem>
diff --git a/v2rayN/v2rayN/Views/DNSSettingWindow.xaml b/v2rayN/v2rayN/Views/DNSSettingWindow.xaml
index 38be6091..b0f2062c 100644
--- a/v2rayN/v2rayN/Views/DNSSettingWindow.xaml
+++ b/v2rayN/v2rayN/Views/DNSSettingWindow.xaml
@@ -80,7 +80,7 @@
                             x:Name="cmbDirectDNS"
                             Grid.Row="1"
                             Grid.Column="1"
-                            Width="200"
+                            Width="300"
                             Margin="{StaticResource Margin8}"
                             IsEditable="True"
                             Style="{StaticResource DefComboBox}" />
@@ -96,7 +96,7 @@
                             x:Name="cmbRemoteDNS"
                             Grid.Row="2"
                             Grid.Column="1"
-                            Width="200"
+                            Width="300"
                             Margin="{StaticResource Margin8}"
                             IsEditable="True"
                             Style="{StaticResource DefComboBox}" />
@@ -112,7 +112,7 @@
                             x:Name="cmbSBResolverDNS"
                             Grid.Row="3"
                             Grid.Column="1"
-                            Width="200"
+                            Width="300"
                             Margin="{StaticResource Margin8}"
                             IsEditable="True"
                             Style="{StaticResource DefComboBox}" />
@@ -136,7 +136,7 @@
                             x:Name="cmbSBFinalResolverDNS"
                             Grid.Row="4"
                             Grid.Column="1"
-                            Width="200"
+                            Width="300"
                             Margin="{StaticResource Margin8}"
                             IsEditable="True"
                             Style="{StaticResource DefComboBox}" />