Examine source code of Address Autofiller

{
  "manifest_version": 2,
  "name": "Address Autofiller",
  "description": "Google Chrome Extension to autofill AliExpress address and copy eBay customer data on order page.",
  "version": "0.1.7",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.aliexpress.com/*",
        "*://*.aliexpress.us/*"
      ],
      "js": [
        "content-scripts/aliexpress.js"
      ]
    },
    {
      "matches": [
        "*://*.ebay.co.uk/*",
        "*://*.ebay.com/*"
      ],
      "js": [
        "content-scripts/ebay.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "content-scripts/aliexpress.css",
    "content-scripts/ebay.css"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "address-autofiller@softwebtuts.com"
    }
  }
}