Examine source code of Random Quote Everyday

{
  "manifest_version": 2,
  "name": "Random Quote Everyday : Productivity",
  "description": "A simple , lightweight random quote generator.",
  "version": "1.0.1",
  "icons": {
    "128": "todo-128.png"
  },
  "browser_action": {
    "default_icon": "todo-19.png",
    "default_popup": "popup.html"
  },
  "permissions": [
    "activeTab"
  ]
}