Examine source code of Tiktok Background Runner

{
  "manifest_version": 3,
  "name": "__MSG_app_store_name__",
  "description": "__MSG_app_description__",
  "default_locale": "en",
  "version": "5.1.5",
  "icons": {
    "16": "src/assets/icons/icon16.png",
    "32": "src/assets/icons/icon32.png",
    "48": "src/assets/icons/icon48.png",
    "128": "src/assets/icons/icon128.png"
  },
  "action": {
    "default_icon": {
      "16": "src/assets/icons/icon16.png",
      "32": "src/assets/icons/icon32.png",
      "48": "src/assets/icons/icon48.png",
      "128": "src/assets/icons/icon128.png"
    },
    "default_popup": "src/popup/index.html"
  },
  "sidebar_action": {
    "default_panel": "src/sidepanel/index.html",
    "default_icon": "src/assets/icons/icon48.png",
    "default_title": "__MSG_app_title__"
  },
  "permissions": [
    "background",
    "tabs",
    "scripting",
    "storage",
    "alarms",
    "downloads"
  ],
  "content_scripts": [
    {
      "js": [
        "assets/main.tsx-loader-DD3aaOLZ.js"
      ],
      "matches": [
        "https://www.tiktok.com/*"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "https://www.tiktok.com/*"
      ],
      "resources": [
        "src/content/inpage/visibility-spoof.js",
        "src/content/inpage/get-video-url.js",
        "src/welcome/index.html",
        "src/update/index.html",
        "src/assets/icons/icon128.png",
        "assets/client-mZGkgq50.js",
        "assets/index-DnAXTA8P.js",
        "assets/main.tsx-C4-9D559.js"
      ],
      "use_dynamic_url": false
    }
  ],
  "background": {
    "scripts": [
      "assets/sw.ts-mittUWRS.js"
    ],
    "type": "module"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8d9e5301-6fbd-494c-9b43-15f254ead74f}",
      "strict_min_version": "109.0"
    }
  }
}