diff --git a/v2rayN/Directory.Packages.props b/v2rayN/Directory.Packages.props
index 89db7035..839b3384 100644
--- a/v2rayN/Directory.Packages.props
+++ b/v2rayN/Directory.Packages.props
@@ -9,7 +9,6 @@
     <PackageVersion Include="Avalonia.Controls.DataGrid" Version="11.3.12" />
     <PackageVersion Include="Avalonia.Desktop" Version="11.3.12" />
     <PackageVersion Include="Avalonia.Diagnostics" Version="11.3.12" />
-    <PackageVersion Include="AvaloniaEdit.TextMate" Version="11.4.1" />
     <PackageVersion Include="ReactiveUI.Avalonia" Version="11.4.12" />
     <PackageVersion Include="CliWrap" Version="3.10.0" />
     <PackageVersion Include="Downloader" Version="5.1.0" />
@@ -26,7 +25,6 @@
     <PackageVersion Include="NLog" Version="6.1.1" />
     <PackageVersion Include="sqlite-net-pcl" Version="1.9.172" />
     <PackageVersion Include="TaskScheduler" Version="2.12.2" />
-    <PackageVersion Include="TextMateSharp.Grammars" Version="2.0.3" />
     <PackageVersion Include="WebDav.Client" Version="2.9.0" />
     <PackageVersion Include="YamlDotNet" Version="16.3.0" />
     <PackageVersion Include="ZXing.Net.Bindings.SkiaSharp" Version="0.16.14" />
diff --git a/v2rayN/v2rayN.Desktop/Views/JsonEditor.axaml.cs b/v2rayN/v2rayN.Desktop/Views/JsonEditor.axaml.cs
index 1ed6203b..f577c85e 100644
--- a/v2rayN/v2rayN.Desktop/Views/JsonEditor.axaml.cs
+++ b/v2rayN/v2rayN.Desktop/Views/JsonEditor.axaml.cs
@@ -1,6 +1,7 @@
 using System.Text.Json;
-using AvaloniaEdit.TextMate;
-using TextMateSharp.Grammars;
+using System.Xml;
+using AvaloniaEdit.Highlighting;
+using AvaloniaEdit.Highlighting.Xshd;
 
 namespace v2rayN.Desktop.Views;
 
@@ -8,19 +9,49 @@ public partial class JsonEditor : UserControl
 {
     private static readonly JsonSerializerOptions SIndentedOptions = new() { WriteIndented = true };
 
+    private static readonly Lazy<IHighlightingDefinition> SHighlightingDark =
+        new(() => BuildHighlighting(dark: true), isThreadSafe: true);
+
+    private static readonly Lazy<IHighlightingDefinition> SHighlightingLight =
+        new(() => BuildHighlighting(dark: false), isThreadSafe: true);
+
     public JsonEditor()
     {
         InitializeComponent();
-        var currentTheme = Application.Current?.ActualThemeVariant;
-        var themeName = currentTheme == ThemeVariant.Dark ? ThemeName.DarkPlus :
-            currentTheme == ThemeVariant.Light ? ThemeName.LightPlus :
-            ThemeName.DarkPlus;
-        var jsonRegistryOptions = new RegistryOptions(themeName);
-        var grammarScopeName = jsonRegistryOptions.GetScopeByLanguageId(jsonRegistryOptions.GetLanguageByExtension(".json").Id);
-        Editor.InstallTextMate(jsonRegistryOptions).SetGrammar(grammarScopeName);
+        var isDark = Application.Current?.ActualThemeVariant != ThemeVariant.Light;
+        Editor.SyntaxHighlighting = isDark ? SHighlightingDark.Value : SHighlightingLight.Value;
         Editor.TextArea.TextView.Options.EnableHyperlinks = false;
     }
 
+    private static IHighlightingDefinition BuildHighlighting(bool dark)
+    {
+        var keyColor = dark ? "#9CDCFE" : "#0451A5";
+        var strColor = dark ? "#CE9178" : "#A31515";
+        var numColor = dark ? "#B5CEA8" : "#098658";
+        var kwColor  = dark ? "#569CD6" : "#0000FF";
+        var xshd = $"""
+            <?xml version="1.0"?>
+            <SyntaxDefinition name="JSON" xmlns="http://icsharpcode.net/sharpdevelop/syntaxdefinition/2008">
+              <Color name="Key" foreground="{keyColor}" />
+              <Color name="String" foreground="{strColor}" />
+              <Color name="Number" foreground="{numColor}" />
+              <Color name="Keyword" foreground="{kwColor}" fontWeight="bold" />
+              <RuleSet>
+                <Rule color="Key">"([^"\\]|\\.)*"(?=\s*:)</Rule>
+                <Rule color="String">"([^"\\]|\\.)*"</Rule>
+                <Rule color="Number">-?(?:0|[1-9][0-9]*)(?:\.[0-9]+)?(?:[eE][+-]?[0-9]+)?</Rule>
+                <Keywords color="Keyword">
+                  <Word>true</Word>
+                  <Word>false</Word>
+                  <Word>null</Word>
+                </Keywords>
+              </RuleSet>
+            </SyntaxDefinition>
+            """;
+        using var reader = XmlReader.Create(new StringReader(xshd));
+        return HighlightingLoader.Load(reader, HighlightingManager.Instance);
+    }
+
     public string Text
     {
         get => Editor.Text;
diff --git a/v2rayN/v2rayN.Desktop/v2rayN.Desktop.csproj b/v2rayN/v2rayN.Desktop/v2rayN.Desktop.csproj
index baaa36dd..6212ce12 100644
--- a/v2rayN/v2rayN.Desktop/v2rayN.Desktop.csproj
+++ b/v2rayN/v2rayN.Desktop/v2rayN.Desktop.csproj
@@ -15,7 +15,6 @@
 		</PackageReference>
 		<PackageReference Include="Avalonia.Desktop" />
 		<PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" />
-		<PackageReference Include="AvaloniaEdit.TextMate" />
 		<PackageReference Include="ReactiveUI.Avalonia" />
 		<PackageReference Include="MessageBox.Avalonia" />
 		<PackageReference Include="Semi.Avalonia" />
@@ -29,7 +28,6 @@
 		<PackageReference Include="ReactiveUI.Fody">
 			<TreatAsUsed>true</TreatAsUsed>
 		</PackageReference>
-		<PackageReference Include="TextMateSharp.Grammars" />
 	</ItemGroup>
 
 	<ItemGroup>