To modify the syntax highlighting color in VS Code, you can do it by editing the theme file or customizing the configuration; open the command panel and select "Preferences: Open User Color Theme" to select the basic theme, and then add the editor.tokenColorCustomizations configuration item to override the specific syntax element colors through the "Preferences: Open Settings (JSON)"; use the extension "Developer: Inspect Editor Tokens and Scopes" to view the syntax classification of the code at the cursor (such as keyword, string, etc.), and then set the foreground color by the scope name in the configuration; if you need to thoroughly customize the theme, you can create a new .vscode-theme.json file to define name, type, colors, and tokenColors And apply the changes through the command "Preferences: Reload Custom Theme".

If you write code with VS Code, you will definitely notice that different syntax elements are different in color. This is the role of syntax highlighting. If you want to adjust these colors, such as making the keywords more prominent or changing them to your favorite style, it is actually not difficult. VS Code allows you to do this by customizing the theme or modifying an existing theme.

Basic ways to modify theme colors

The syntax highlighting of VS Code is mainly controlled by the theme file, usually a .json file that contains the color settings of various text elements. To change the syntax highlighting color, you need to edit this file.

• Open the command panel (Ctrl Shift P or Cmd Shift P)
• Enter and select "Preferences: Open User Color Theme"
• Choose a theme you like as the basis
• Then open the command "Preferences: Open Settings (JSON)"
• Add editor.tokenColorCustomizations configuration item to it

This part of the configuration allows you to override the colors of certain syntax elements in the current theme, without having to make a complete theme from scratch.

Common grammatical elements and corresponding keywords

Syntax highlighting in VS Code is a rule system based on TextMate, and each syntax element has a corresponding scope name. You can view the syntax classification of the current cursor position in the following ways:

• Install the extension: "Developer: Inspect Editor Tokens and Scopes"
• Use the shortcut key Ctrl Shift P to enter "Developer: Inspect Editor Tokens and Scopes"
• Put the cursor somewhere in the code and you can see what token type it belongs to

Some common types include:

• comment
• string
• keyword
• variable
• function

In tokenColorCustomizations , you can write this:

 "editor.tokenColorCustomizations": {
  "[One Dark Pro]": {
    "textMateRules": [
      {
        "scope": "keyword",
        "settings": {
          "foreground": "#ff0000"
        }
      }
    ]
  }
}

This configuration will turn all keywords into red (provided that you use the One Dark Pro theme). You can modify scope and color values ??as needed.

Customize the entire theme file (advanced)

If you don't just want to modify it in a small way, but want to completely customize your own theme, you can create a new .vscode-theme.json file.

The steps are as follows:

• Create a new .json file, such as my-custom-theme.json
• Set the basic structure, including name , type , colors , and tokenColors
• Define the various syntax styles you want to override in tokenColors
• After saving, use "Preferences: Reload Custom Theme" in the command panel to apply

This method is suitable for those who want to have complete control over the color scheme and is also convenient for sharing with others.

Basically that's it. Modifying the syntax color seems a bit technical, but as long as you understand the concept and configuration location of the token, the operation is not complicated. The key is to find the name corresponding to the syntax part you want to change, and then set the appropriate color value.

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