Examine source code of xGScraper

{
  "manifest_version": 2,
  "name": "xGScraper",
  "version": "0.1.0",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "permissions": [
    "menus",
    "contextMenus",
    "activeTab",
    "scripting",
    "storage"
  ],
  "web_accessible_resources": [
    "worker.js",
    "content-scripts/main.css"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [],
  "browser_action": {},
  "browser_specific_settings": {
    "gecko": {
      "id": "{e91b0d42-fd3e-4634-a6c5-53d9f3b06a09}"
    }
  }
}