VS Code中C#扩展覆盖主题语法高亮问题求助

在VS Code中使用微软官方C#扩展（ms-dotnettools.csharp）时，主题设置的代码语法高亮会被该扩展覆盖——关闭扩展时显示正常，开启后颜色被强制替换。已关闭扩展的C#语义高亮设置，且VS Code全局语义高亮设为configureByTheme。

关闭扩展时的预期显示效果 #

using5 chars
language    csharp
standard token type Other
foreground  #009C8F
background  #E1F4F4
contrast ratio  3.00
textmate scopes keyword.other.using.cs
source.cs
foreground  keyword.other
{ "foreground": "#009C8F" }

开启扩展后的异常显示效果 #

using5 chars
language    csharp
standard token type Other
foreground  #D0A00F
background  #E1F4F4
contrast ratio  2.12
semantic token type keyword
foreground  keyword.control
keyword.package.go
keyword.operator.pointer.go
keyword.control
keyword.control.conditional
storage.modifier
keyword.operator.new
keyword.operator.expression
keyword.begin.blade
keyword.end.blade
keyword.blade
keyword.type-alias
keyword.type
support.class.console
keyword.other.await
storage.type.class.jsdoc
punctuation.definition.block.tag.jsdoc
keyword.other.new
keyword.other.phpdoc
keyword.other.use.php
keyword.operator.logical.python
keyword.other.import.static.groovy
keyword.other.import.groovy
punctuation.definition.attribute.swift
source.svelte meta.scope.tag.main.svelte meta.tag.start.svelte variable.function.svelte
meta.directive.on.svelte entity.name.type.svelte
keyword.other.special-method.elixir
keyword.edge
entity.name.function.edge
support.constant.edge
keyword.other.gdscript
keyword.other.onready.gdscript
source.graphql meta.fragment.graphql keyword.on.graphql
source.graphql meta.type.interface.graphql keyword.implements.graphql
source.graphql meta.type.interface.graphql meta.type.object.graphql meta.type.list.graphql keyword.operator.nulltype.graphql
source.graphql meta.variables.graphql keyword.operator.nulltype.graphql
source.graphql meta.type.interface.graphql meta.type.object.graphql keyword.operator.nulltype.graphql
keyword.operator.class.php
keyword.operator.spread.php
keyword.operator.type.php
keyword.operator.increment-decrement.php
keyword.operator.increment-increment.php
punctuation.support.type.property-name.begin.json
punctuation.support.type.property-name.end.json
keyword.operator.string.php
keyword.operator.ternary.php
keyword.operator.variadic.php
keyword.operator.nullable-type.php
keyword.other.use-as.php
keyword.import.go
keyword.operator.address.go
keyword.operator.null-coalescing
keyword.operator.arrow
keyword.struct.go
keyword.operator.liquid
keyword.operator.optional.ts
keyword.cmake
{ "foreground": "#d0a00f" }
textmate scopes keyword.other.using.cs
source.cs
foreground  keyword.other
{ "foreground": "#009C8F" }

解决方法 #

• 彻底禁用C#扩展语义高亮：打开VS Code设置，搜索C# Semantic Highlighting，将csharp.semanticHighlighting.enabled设为false，也可直接在settings.json中添加：

  "csharp.semanticHighlighting.enabled": false
  

• 强制指定主题颜色：在settings.json中针对当前主题自定义C#文本范围的颜色，覆盖扩展样式：

  "editor.tokenColorCustomizations": {
    "[你的主题名称]": {
      "textMateRules": [
        {
          "scope": "keyword.other.using.cs",
          "settings": {
            "foreground": "#009C8F"
          }
        }
      ]
    }
  }
  

  替换[你的主题名称]为当前使用的主题名称。
• 更新/重置扩展：将C#扩展更新至最新版本，或卸载后重新安装，排除版本缓存或bug冲突。
• 确认全局语义高亮设置：确保editor.semanticHighlighting.enabled保持为configureByTheme：

  "editor.semanticHighlighting.enabled": "configureByTheme"
  

内容的提问来源于stack exchange，提问作者Bruno.