Examine source code of Coding Schedule

{
  "name": "Coding Schedule",
  "version": "3.1",
  "description": "The main purpose of this extension is to make the competitive programming community aware about live and upcoming contests.",
  "homepage_url": "https://codingschedule.gitlab.io",
  "permissions": [
    "storage",
    "http://codescrape.azurewebsites.net/getData"
  ],
  "options_ui": {
    "page": "options.html"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/csicon16.png",
      "32": "images/csicon32.png",
      "48": "images/csicon48.png",
      "128": "images/csicon128.png"
    }
  },
  "icons": {
    "16": "images/csicon16.png",
    "32": "images/csicon32.png",
    "48": "images/csicon48.png",
    "128": "images/csicon128.png"
  },
  "manifest_version": 2
}