Examine source code of Udemythos

{
  "name": "Udemythos",
  "short_name": "Udemythos",
  "description": "Udemy student page capability enhancer browser extension.",
  "homepage_url": "https://github.com/caglarorhan/udemythos.git",
  "version": "2019.0.2",
  "manifest_version": 2,
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Udemythos",
    "default_icon": "./img/athena-16.png"
  },
  "icons": {
    "16": "./img/athena-16.png",
    "32": "./img/athena-32.png",
    "48": "./img/athena-48.png",
    "64": "./img/athena-64.png",
    "128": "./img/athena-128.png"
  },
  "options_page": "options.html",
  "background": {
    "scripts": [
      "./js/background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.udemy.com/*"
      ],
      "all_frames": true,
      "js": [
        "./js/content.js"
      ],
      "css": [
        "./css/content.css"
      ],
      "match_about_blank": true
    }
  ],
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "https://www.udemy.com/*"
  ],
  "web_accessible_resources": [
    "./js/content.js",
    "./css/content.css"
  ]
}