Examine source code of JOJOx

{
  "name": "JOJOx",
  "version": "0.0.1.1",
  "manifest_version": 2,
  "icons": {
    "16": "/media/jojox-icon-16.png",
    "24": "/media/jojox-icon-24.png",
    "32": "/media/jojox-icon-32.png",
    "128": "/media/jojox-icon-128.png"
  },
  "background": {
    "scripts": [
      "/background/index.js"
    ],
    "persist": false
  },
  "browser_action": {
    "default_icon": {
      "16": "/media/jojox-icon-16.png",
      "24": "/media/jojox-icon-24.png",
      "32": "/media/jojox-icon-32.png"
    },
    "default_title": "Netflix Comments"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.netflix.com/*"
      ],
      "js": [
        "/content/embed.js"
      ]
    }
  ],
  "permissions": [
    "tabs",
    "https://www.netflix.com/*"
  ],
  "web_accessible_resources": [
    "/media/jojox-icon.png",
    "https://jojo-widget.herokuapp.com/*",
    "https://jojo-be.herokuapp.com/*",
    "/content/loading-page.html"
  ]
}