Examine source code of eBay Order Manager

{
  "manifest_version": 2,
  "name": "eBay Order Manager",
  "version": "1.0.1",
  "description": "Extract and manage orders from eBay platform",
  "permissions": [
    "webNavigation",
    "activeTab",
    "storage",
    "tabs",
    "*://*.ebay.com/*",
    "*://*.ebay.co.uk/*",
    "*://*.ebay.ca/*",
    "*://*.ebay.com.au/*"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.ebay.com/*",
        "*://*.ebay.co.uk/*",
        "*://*.ebay.ca/*",
        "*://*.ebay.com.au/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "popup.html",
    "popup.js",
    "icons/*"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c17993aa-59d6-4917-834a-b5ea185a4db5}"
    }
  }
}