diff --git a/v2rayN/v2rayN/ViewModels/AddServer2ViewModel.cs b/v2rayN/v2rayN/ViewModels/AddServer2ViewModel.cs
index 1717aa1e..b2272749 100644
--- a/v2rayN/v2rayN/ViewModels/AddServer2ViewModel.cs
+++ b/v2rayN/v2rayN/ViewModels/AddServer2ViewModel.cs
@@ -56,7 +56,7 @@ namespace v2rayN.ViewModels
                 SaveServer();
             });
 
-            Utils.SetDarkBorder(view, _config.uiItem.colorModeDark);
+            Utils.SetDarkBorder(view, _config.uiItem.followSystemTheme ? !Utils.IsLightTheme() : _config.uiItem.colorModeDark);
         }
 
         private void SaveServer()
diff --git a/v2rayN/v2rayN/ViewModels/AddServerViewModel.cs b/v2rayN/v2rayN/ViewModels/AddServerViewModel.cs
index a014d9a2..bb191b46 100644
--- a/v2rayN/v2rayN/ViewModels/AddServerViewModel.cs
+++ b/v2rayN/v2rayN/ViewModels/AddServerViewModel.cs
@@ -44,7 +44,7 @@ namespace v2rayN.ViewModels
                 SaveServer();
             });
 
-            Utils.SetDarkBorder(view, _config.uiItem.colorModeDark);
+            Utils.SetDarkBorder(view, _config.uiItem.followSystemTheme ? !Utils.IsLightTheme() : _config.uiItem.colorModeDark);
         }
 
         private void SaveServer()
diff --git a/v2rayN/v2rayN/ViewModels/DNSSettingViewModel.cs b/v2rayN/v2rayN/ViewModels/DNSSettingViewModel.cs
index 685f8ed7..d618c2d5 100644
--- a/v2rayN/v2rayN/ViewModels/DNSSettingViewModel.cs
+++ b/v2rayN/v2rayN/ViewModels/DNSSettingViewModel.cs
@@ -56,7 +56,7 @@ namespace v2rayN.ViewModels
                 tunDNS2 = Utils.GetEmbedText(Global.TunSingboxDNSFileName);
             });
 
-            Utils.SetDarkBorder(view, _config.uiItem.colorModeDark);
+            Utils.SetDarkBorder(view, _config.uiItem.followSystemTheme ? !Utils.IsLightTheme() : _config.uiItem.colorModeDark);
         }
 
         private void SaveSetting()
diff --git a/v2rayN/v2rayN/ViewModels/OptionSettingViewModel.cs b/v2rayN/v2rayN/ViewModels/OptionSettingViewModel.cs
index 484338e2..77746f60 100644
--- a/v2rayN/v2rayN/ViewModels/OptionSettingViewModel.cs
+++ b/v2rayN/v2rayN/ViewModels/OptionSettingViewModel.cs
@@ -196,7 +196,7 @@ namespace v2rayN.ViewModels
                 SaveSetting();
             });
 
-            Utils.SetDarkBorder(view, _config.uiItem.colorModeDark);
+            Utils.SetDarkBorder(view, _config.uiItem.followSystemTheme ? !Utils.IsLightTheme() : _config.uiItem.colorModeDark);
         }
 
         private void InitCoreType()
diff --git a/v2rayN/v2rayN/ViewModels/RoutingRuleDetailsViewModel.cs b/v2rayN/v2rayN/ViewModels/RoutingRuleDetailsViewModel.cs
index 2b49b211..9bafcb6e 100644
--- a/v2rayN/v2rayN/ViewModels/RoutingRuleDetailsViewModel.cs
+++ b/v2rayN/v2rayN/ViewModels/RoutingRuleDetailsViewModel.cs
@@ -62,7 +62,7 @@ namespace v2rayN.ViewModels
                 SaveRules();
             });
 
-            Utils.SetDarkBorder(view, _config.uiItem.colorModeDark);
+            Utils.SetDarkBorder(view, _config.uiItem.followSystemTheme ? !Utils.IsLightTheme() : _config.uiItem.colorModeDark);
         }
 
         private void SaveRules()
diff --git a/v2rayN/v2rayN/ViewModels/RoutingRuleSettingViewModel.cs b/v2rayN/v2rayN/ViewModels/RoutingRuleSettingViewModel.cs
index 67b9af5f..f6489450 100644
--- a/v2rayN/v2rayN/ViewModels/RoutingRuleSettingViewModel.cs
+++ b/v2rayN/v2rayN/ViewModels/RoutingRuleSettingViewModel.cs
@@ -115,7 +115,7 @@ namespace v2rayN.ViewModels
                 SaveRouting();
             });
 
-            Utils.SetDarkBorder(view, _config.uiItem.colorModeDark);
+            Utils.SetDarkBorder(view, _config.uiItem.followSystemTheme ? !Utils.IsLightTheme() : _config.uiItem.colorModeDark);
         }
 
         public void RefreshRulesItems()
diff --git a/v2rayN/v2rayN/ViewModels/RoutingSettingViewModel.cs b/v2rayN/v2rayN/ViewModels/RoutingSettingViewModel.cs
index 9a7e6ca1..334869be 100644
--- a/v2rayN/v2rayN/ViewModels/RoutingSettingViewModel.cs
+++ b/v2rayN/v2rayN/ViewModels/RoutingSettingViewModel.cs
@@ -126,7 +126,7 @@ namespace v2rayN.ViewModels
                 SaveRouting();
             });
 
-            Utils.SetDarkBorder(view, _config.uiItem.colorModeDark);
+            Utils.SetDarkBorder(view, _config.uiItem.followSystemTheme ? !Utils.IsLightTheme() : _config.uiItem.colorModeDark);
         }
 
         #region locked
diff --git a/v2rayN/v2rayN/ViewModels/SubEditViewModel.cs b/v2rayN/v2rayN/ViewModels/SubEditViewModel.cs
index 54bb01be..84d02cde 100644
--- a/v2rayN/v2rayN/ViewModels/SubEditViewModel.cs
+++ b/v2rayN/v2rayN/ViewModels/SubEditViewModel.cs
@@ -40,7 +40,7 @@ namespace v2rayN.ViewModels
                 SaveSub();
             });
 
-            Utils.SetDarkBorder(view, _config.uiItem.colorModeDark);
+            Utils.SetDarkBorder(view, _config.uiItem.followSystemTheme ? !Utils.IsLightTheme() : _config.uiItem.colorModeDark);
         }
 
         private void SaveSub()
diff --git a/v2rayN/v2rayN/ViewModels/SubSettingViewModel.cs b/v2rayN/v2rayN/ViewModels/SubSettingViewModel.cs
index 6a4f987b..ab57773f 100644
--- a/v2rayN/v2rayN/ViewModels/SubSettingViewModel.cs
+++ b/v2rayN/v2rayN/ViewModels/SubSettingViewModel.cs
@@ -62,7 +62,7 @@ namespace v2rayN.ViewModels
                 SubShare();
             }, canEditRemove);
 
-            Utils.SetDarkBorder(view, _config.uiItem.colorModeDark);
+            Utils.SetDarkBorder(view, _config.uiItem.followSystemTheme ? !Utils.IsLightTheme() : _config.uiItem.colorModeDark);
         }
 
         public void RefreshSubItems()
diff --git a/v2rayN/v2rayN/Views/GlobalHotkeySettingWindow.xaml.cs b/v2rayN/v2rayN/Views/GlobalHotkeySettingWindow.xaml.cs
index 211b9430..513c504b 100644
--- a/v2rayN/v2rayN/Views/GlobalHotkeySettingWindow.xaml.cs
+++ b/v2rayN/v2rayN/Views/GlobalHotkeySettingWindow.xaml.cs
@@ -39,7 +39,7 @@ namespace v2rayN.Views
 
             HotkeyHandler.Instance.IsPause = true;
             this.Closing += (s, e) => HotkeyHandler.Instance.IsPause = false;
-            Utils.SetDarkBorder(this, _config.uiItem.colorModeDark);
+            Utils.SetDarkBorder(this, _config.uiItem.followSystemTheme ? !Utils.IsLightTheme() : _config.uiItem.colorModeDark);
             InitData();
         }
 
diff --git a/v2rayN/v2rayN/Views/MainWindow.xaml b/v2rayN/v2rayN/Views/MainWindow.xaml
index 4405741e..b8162795 100644
--- a/v2rayN/v2rayN/Views/MainWindow.xaml
+++ b/v2rayN/v2rayN/Views/MainWindow.xaml
@@ -15,6 +15,7 @@
     Title="v2rayN"
     Width="900"
     Height="700"
+    MinWidth="900"
     x:TypeArguments="vms:MainWindowViewModel"
     Background="{DynamicResource MaterialDesignPaper}"
     FontFamily="{x:Static conv:MaterialDesignFonts.MyFont}"