Examine source code of Github Quick Approve

{
  "manifest_version": 2,
  "name": "Github Quick Approve",
  "version": "1.0.0",
  "description": "Quick approve on your pull request",
  "content_scripts": [
    {
      "matches": [
        "*://*.github.com/*"
      ],
      "js": [
        "index.js"
      ],
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "https://www.github.com/",
    "http://www.github.com/",
    "storage"
  ],
  "icons": {
    "16": "icon_16.png",
    "48": "icon_48.png",
    "128": "icon_128.png",
    "256": "icon_256.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3aabadb5-1c54-420f-b3c9-0407652f8092}"
    }
  }
}