Examine source code of PrivacySpy

{
  "manifest_version": 2,
  "name": "PrivacySpy",
  "version": "2.0.1",
  "description": "Grading privacy policies for convenience and accountability.",
  "homepage_url": "https://privacyspy.org",
  "icons": {
    "16": "icons/privacyspy-16-dark.png",
    "48": "icons/privacyspy-48-dark.png",
    "96": "icons/privacyspy-96-dark.png",
    "128": "icons/privacyspy-128-dark.png"
  },
  "permissions": [
    "tabs",
    "storage"
  ],
  "browser_action": {
    "default_title": "PrivacySpy",
    "default_popup": "popup/index.html",
    "default_icon": {
      "16": "icons/privacyspy-16-dark.png",
      "32": "icons/privacyspy-32-dark.png",
      "64": "icons/privacyspy-64-dark.png"
    }
  },
  "applications": {
    "gecko": {
      "id": "privacyspy@politiwatch.org"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "web_accessible_resources": [
    "icons/privacyspy-96-dark.png"
  ]
}