dwds/debug_extension_mv3/web/manifest.json

{
    "name": "[MV3] Dart Debug Extension",
    "version": "1.0",
    "manifest_version": 3,
    "action": {
        "default_icon": "dart_dev.png"
    },
    "permissions": [
        "debugger",
        "scripting",
        "storage",
        "tabs"
    ],
    "host_permissions": [
        "<all_urls>"
    ],
    "background": {
        "service_worker": "background.dart.js"
    },
    "content_scripts": [
        {
            "matches": [
                "<all_urls>"
            ],
            "js": [
                "detector.dart.js"
            ],
            "run_at": "document_end"
        }
    ],
    "options_page": "settings.html"
}