Examine source code of Atikin Focus Switcher

{
  "manifest_version": 2,
  "name": "Atikin Focus Switcher",
  "short_name": "Focus Switch",
  "version": "1.0",
  "description": "Switch between 'Work' and 'Personal' tab groups with one click. Boost focus & productivity.",
  "permissions": [
    "tabs",
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "browser_action": {
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "author": "Atikin Verse",
  "homepage_url": "https://atikinverse.com",
  "keywords": [
    "tab switcher",
    "productivity",
    "focus",
    "work mode",
    "tab groups",
    "Atikin",
    "AtikinVerse",
    "tab manager",
    "firefox",
    "browser extension"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d619df4e-2e75-469c-a2c6-e347347d140c}"
    }
  }
}