qmk-firmware/.vscode/settings.json

// Place your settings in this file to overwrite default and user settings.
{
    // Unofficially, QMK uses spaces for indentation
    "editor.insertSpaces": true,
    // Configure glob patterns for excluding files and folders.
    "files.exclude": {
        "**/.build": true,
        "**/*.hex": true
    },
    "files.associations": {
        "*.h": "c",
        "*.c": "c",
        "*.cpp": "cpp",
        "*.hpp": "cpp",
        "xstddef": "c"
    }
}