Examine source code of Goolag

{
  "manifest_version": 2,
  "version": "1.1resigned1",
  "name": "Goolag",
  "description": "Google's real logo based on their fascist ideology",
  "content_scripts": [
    {
      "matches": [
        "https://www.google.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "*/google-goolag.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{a5df87cd-284a-4f48-992d-696b28b0af59}"
    }
  }
}