Examine source code of Product Review Analyzer

{
  "manifest_version": 2,
  "name": "Product Review Analyzer",
  "version": "1.0",
  "description": "Analyze product reviews to provide a neutral summary for better purchasing decisions.",
  "icons": {
    "32": "icons/logo_32.png",
    "64": "icons/logo_64.png",
    "128": "icons/logo_128.png"
  },
  "permissions": [
    "activeTab",
    "storage",
    "http://*/",
    "https://*/"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.amazon.com/*",
        "*://*.ebay.com/*",
        "*://*.aliexpress.com/*",
        "*://*.shoppingwebsite.com/*"
      ],
      "js": [
        "contentScript.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "32": "icons/logo_32.png",
      "64": "icons/logo_64.png",
      "128": "icons/logo_128.png"
    },
    "default_title": "Analyze Reviews"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a7c1707d-cbe6-48a9-85ea-61ae84195bfb}"
    }
  }
}