Examine source code of Streamplex Live

{
  "manifest_version": 2,
  "name": "Streamplex Live",
  "version": "3.1.7",
  "description": "Explore and track gaming livestreams across multiple platforms.",
  "icons": {
    "256": "img/icon/icon256.png"
  },
  "background": {
    "scripts": [
      "js/jquery.min.js",
      "js/jquery.plugin.min.js",
      "js/backend.js"
    ]
  },
  "browser_action": {
    "default_icon": "img/icon/icon256.png",
    "default_title": "Live Now",
    "default_popup": "htm/popup.htm"
  },
  "permissions": [
    "notifications",
    "idle",
    "storage",
    "*://*.streamplex.io/"
  ]
}