Examine source code of Alfanify

{
  "manifest_version": 2,
  "name": "Alfanify",
  "version": "1.0",
  "description": "Change all images on the internet to some infamous italian politicians. Probably not the most useful extension.",
  "icons": {
    "48": "icons/alfano.jpg"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "alfanify.js"
      ]
    }
  ],
  "permissions": [
    "activeTab"
  ],
  "web_accessible_resources": [
    "politicians/alfano.jpg",
    "politicians/razzi.jpg",
    "politicians/toninelli.jpg"
  ]
}