Examine source code of Joinesty

{
  "manifest_version": 2,
  "name": "__MSG_extension_name__",
  "version": "0.2.37",
  "description": "__MSG_extension_description__",
  "author": "Joinesty, Inc.",
  "homepage_url": "https://www.joinesty.com",
  "default_locale": "en",
  "updateURL": "http://static.joinesty.com/extensions/updates",
  "icons": {
    "16": "img/logo_16.png",
    "32": "img/logo_32.png",
    "48": "img/logo_48.png",
    "128": "img/logo_128.png"
  },
  "browser_action": {
    "default_icon": {
      "19": "img/logo_bw_19.png",
      "38": "img/logo_bw_38.png"
    }
  },
  "background": {
    "persistent": true,
    "scripts": [
      "index.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "injection/credential.js"
      ]
    }
  ],
  "permissions": [
    "http://*/*",
    "https://*/*",
    "notifications",
    "webNavigation",
    "tabs",
    "storage"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'; style-src 'self' 'unsafe-eval' 'unsafe-inline' https://maxcdn.bootstrapcdn.com https://fonts.googleapis.com",
  "web_accessible_resources": [
    "pages/public/*",
    "pages/lib/*",
    "img/*"
  ]
}