Examine source code of FreeLeech

{
  "manifest_version": 2,
  "name": "__MSG_extExtension__",
  "version": "1.5",
  "description": "__MSG_extDescription__",
  "default_locale": "en",
  "icons": {
    "128": "icons/logo.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "downloads",
    "notifications",
    "storage",
    "<all_urls>"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "browser_style": false
  },
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self';"
}