Examine source code of Get Motivated

{
  "author": "Rahul Kapoor",
  "background": {
    "persistent": false,
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "38": "images/icon48.png"
    },
    "default_title": "Open Get Motivated"
  },
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "description": "Let me motivate you everyday. I won't annoy you, I promise.",
  "homepage_url": "https://github.com/rahulkapoor90",
  "icons": {
    "16": "images/icon16.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "manifest_version": 2,
  "name": "Get Motivated",
  "offline_enabled": true,
  "permissions": [
    "storage"
  ],
  "version": "0.2resigned1",
  "browser_specific_settings": {
    "gecko": {
      "id": "{2edda4a9-9682-41fc-9a0d-670125c5518b}"
    }
  }
}