Examine source code of GitHub Real Name Resolver

{
  "manifest_version": 2,
  "name": "GitHub Real Name Resolver",
  "version": "1.1",
  "description": "Replace cryptic GitHub IDs with real names from hovercards.",
  "content_scripts": [
    {
      "matches": [
        "https://github.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "icons": {
    "96": "icons/icon-96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fe258fb5-3061-47bd-bad9-ab250ef04bbd}"
    }
  }
}