Zombi avatar to little Pony switcher

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Zombi avatar to little Pony switcher",
  "version": "0.1.0",
  "offline_enabled": true,
  "description": "Заменяет страшный аватар участника Zombi на милое пони.",
  "minimum_chrome_version": "12",
  "icons": {
    "128": "img/Pony128.png",
    "256": "img/Pony256.png",
    "512": "img/Pony512.png"
  },
  "permissions": [
    "tabs",
    "http://*/*",
    "https://*/*"
  ],
  "background": {
    "page": "background.html",
    "persistent": true
  },
  "content_scripts": [
    {
      "js": [
        "content.js"
      ],
      "matches": [
        "*://*/*"
      ],
      "run_at": "document_end"
    }
  ]
}