Examine source code of Todorant

{
  "manifest_version": 2,
  "name": "Todorant",
  "version": "1.5.9",
  "description": "Use cognitive psychology to trick your brain into getting things done with the only To Do manager you will ever need.",
  "icons": {
    "16": "img/Icon-16.png",
    "48": "img/Icon-48.png",
    "128": "img/Icon-128.png"
  },
  "permissions": [
    "storage",
    "cookies",
    "https://todorant.com/",
    "contextMenus"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "short_name": "Todorant"
}