Examine source code of Bulc Club

{
  "manifest_version": 2,
  "name": "Bulc Club",
  "description": "Check the Bulc Club Member Rating, Create BulcBurners, and Access Bulc Club Member Console",
  "version": "2.1",
  "browser_action": {
    "default_icon": "icon-19.png",
    "default_popup": "email.html"
  },
  "background": {
    "scripts": [
      "bg.js"
    ],
    "persistent": true
  },
  "permissions": [
    "activeTab",
    "contextMenus"
  ],
  "icons": {
    "16": "icon-16.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "author": "Bulc Club (www.bulc.club)",
  "short_name": "Bulc Club"
}