Examine source code of Review Helper

{
  "author": "Suhaib Mujahid",
  "manifest_version": 2,
  "name": "Review Helper",
  "version": "0.7.7",
  "icons": {
    "488": "assets/review-helper.jpg"
  },
  "description": "Extension that add review comment suggestions on Phabricator.",
  "content_scripts": [
    {
      "matches": [
        "*://phabricator.services.mozilla.com/D*"
      ],
      "js": [
        "main.js"
      ],
      "css": [
        "font-awesome-missed.css",
        "additional-styles.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "storage",
    "https://us-central1-moz-bugbug.cloudfunctions.net/review-helper*"
  ],
  "homepage_url": "https://github.com/mozilla/bugbug",
  "browser_specific_settings": {
    "gecko": {
      "id": "{475ea8f1-b188-4c5e-8615-3295b751e3ee}"
    }
  }
}