Examine source code of Dark Mode Toggle Basic

{
  "manifest_version": 2,
  "name": "Dark Mode Toggle",
  "version": "1.0",
  "description": "A simple extension to toggle between light and dark mode on web pages.",
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/dark-logo.png",
      "48": "images/dark-logo.png",
      "128": "images/dark-logo.png"
    }
  },
  "icons": {
    "16": "images/dark-logo.png",
    "48": "images/dark-logo.png",
    "128": "images/dark-logo.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d0a9b23b-7971-472f-8306-b4f3463fc9a3}"
    }
  }
}