Examine source code of Dopamine Toll

{
  "manifest_version": 3,
  "name": "__MSG_appName__",
  "version": "1.2.0",
  "description": "__MSG_appDesc__",
  "default_locale": "en",
  "permissions": [
    "storage",
    "webNavigation"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "minimum_chrome_version": "121",
  "browser_specific_settings": {
    "gecko": {
      "id": "dopamine-toll@dank.fyi",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "background": {
    "service_worker": "background/service-worker.js",
    "scripts": [
      "background/service-worker.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "shared/i18n.js",
        "shared/format.js",
        "shared/dom.js",
        "content/gate-view.js",
        "content/friction.js",
        "content/blocker.js"
      ],
      "css": [
        "content/blocker.css",
        "content/friction.css"
      ],
      "run_at": "document_start",
      "all_frames": false
    }
  ],
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "assets/icon16.png",
      "48": "assets/icon48.png",
      "128": "assets/icon128.png"
    }
  },
  "options_ui": {
    "page": "options/index.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "assets/icon16.png",
    "48": "assets/icon48.png",
    "128": "assets/icon128.png"
  }
}