Examine source code of Code Owners - Notifier

{
  "name": "Code Owners - Notifier",
  "description": "Sound notification for tickets in ASAC virtual campus",
  "version": "1.0.0",
  "manifest_version": 2,
  "icons": {
    "16": "./logo16.png",
    "32": "./logo32.png",
    "64": "./logo64.png",
    "128": "./logo128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://ltuc-lab.herokuapp.com/*"
      ],
      "js": [
        "./foreground.js"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "./popup.html",
    "default_icon": "./images/logo.png"
  },
  "permissions": [
    "storage"
  ]
}