Examine source code of Visual Web Scraper

{
  "name": "Visual Web Scraper",
  "description": "Easily extract data from any website and export as CSV or JSON files.",
  "version": "1.0.1",
  "manifest_version": 2,
  "icons": {
    "16": "icons/icon_16.png",
    "32": "icons/icon_32.png",
    "48": "icons/icon_48.png",
    "64": "icons/icon_64.png",
    "128": "icons/icon_128.png"
  },
  "permissions": [
    "activeTab",
    "scripting"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "web_accessible_resources": [
    "*"
  ],
  "browser_action": {},
  "browser_specific_settings": {
    "gecko": {
      "id": "{42ddaa2e-4381-4d5d-81d6-c1004e7571aa}"
    }
  }
}