vscode/capnp.configuration.json

{
    "comments": {
        // symbol used for single line comment. Remove this entry if your language does not support line comments
        "lineComment": "#"
    },
    // symbols used as brackets
    "brackets": [
        [
            "{",
            "}"
        ],
        [
            "[",
            "]"
        ],
        [
            "(",
            ")"
        ]
    ]
}