Atom One Dark主题下，如何修改VS Code活动括号水平下划线颜色？

你之前尝试的editorBracketMatch.border和editorBracketMatch.background是用于光标定位到单个括号时的高亮样式，并非活动括号对的水平下划线。要修改你图中所示的水平下划线颜色，需要使用editorBracketPairGuide.activeHorizontal这个颜色配置项。

直接在你的settings.json的[Atom One Dark]配置块中添加以下内容即可：

"editorBracketPairGuide.activeHorizontal": "#aac524"

更新后的完整配置示例如下：

"workbench.colorCustomizations": {
  "[Atom One Dark]": {
    "editorIndentGuide.activeBackground1": "#aac524",
    "editorIndentGuide.activeBackground2": "#793415",
    "editorIndentGuide.activeBackground3": "#FF75B5",
    "editorIndentGuide.activeBackground4": "#45A9F9",
    "editorIndentGuide.activeBackground5": "#B084EB",
    "editorIndentGuide.activeBackground6": "#E6E6E6",
    "editorBracketPairGuide.background1": "#aac524",
    "editorBracketPairGuide.background2": "#FF75B5",
    "editorBracketPairGuide.background3": "#45A9F9",
    "editorBracketPairGuide.background4": "#B084EB",
    "editorBracketPairGuide.background5": "#E6E6E6",
    "editorBracketPairGuide.background6": "#19f9d8",
    "editorBracketPairGuide.activeBackground1": "#FFB86C",
    "editorBracketPairGuide.activeBackground2": "#d4151580",
    "editorBracketPairGuide.activeBackground3": "#45A9F9",
    "editorBracketPairGuide.activeBackground4": "#B084EB",
    "editorBracketPairGuide.activeBackground5": "#E6E6E6",
    "editorBracketPairGuide.activeBackground6": "#19f9d8",
    "editorBracketHighlight.foreground1": "#ff0000",
    "editorBracketHighlight.foreground2": "#ff0000",
    "editorBracketHighlight.foreground3": "#ff0000",
    "editorBracketHighlight.foreground4": "#ff0000",
    "editorBracketHighlight.foreground5": "#ff0000",
    "editorBracketHighlight.foreground6": "#ff0000",
    "editorBracketPairGuide.activeHorizontal": "#aac524"
  }
}

注意：这个配置项需要VS Code版本在1.60及以上才能支持，确保你的编辑器版本符合要求。保存配置后，活动括号对的水平下划线就会变成你设置的颜色了。

内容的提问来源于stack exchange，提问作者Sorina Dinescu