Examine source code of OverleafNord

{
  "manifest_version": 3,
  "name": "OverleafNord",
  "short_name": "OverleafNord",
  "description": "Nord-inspired theme extension for Overleaf with dark and snow light modes.",
  "homepage_url": "https://github.com/dupeiran001/OverleafNord",
  "version": "1.0.0",
  "icons": {
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "OverleafNord Theme Switcher"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.overleaf.com/*"
      ],
      "js": [
        "toggle.js"
      ]
    }
  ],
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "id": "overleafnord@dupeiran001.github",
      "strict_min_version": "109.0"
    }
  }
}