Examine source code of Onion Control (anonymous proxy)

{
  "name": "Onion Control (anonymous proxy)",
  "description": "Brings the anonymity of the Tor network plus modifies few settings to protect user privacy",
  "version": "0.1.5",
  "manifest_version": 2,
  "permissions": [
    "storage",
    "proxy",
    "privacy",
    "notifications",
    "nativeMessaging"
  ],
  "background": {
    "scripts": [
      "EventEmitter.js",
      "tor.js",
      "proxy.js",
      "privacy.js",
      "ui.js",
      "common.js"
    ]
  },
  "browser_action": {
    "default_popup": "data/popup/index.html"
  },
  "homepage_url": "https://add0n.com/tor-control.html",
  "icons": {
    "16": "data/icons/16.png",
    "19": "data/icons/19.png",
    "32": "data/icons/32.png",
    "38": "data/icons/38.png",
    "48": "data/icons/48.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png",
    "256": "data/icons/256.png",
    "512": "data/icons/512.png"
  },
  "options_ui": {
    "page": "data/options/index.html",
    "chrome_style": true
  }
}