Examine source code of Direction Toggle

{
  "manifest_version": 3,
  "name": "Direction Toggle",
  "version": "1.0",
  "description": "Toggles the direction of the body tag between RTL and LTR.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{c1c2d3e4-f5a6-b7c7-d9e0-f1a2b3c4d5e6}"
    }
  },
  "permissions": [
    "activeTab",
    "scripting"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    },
    "default_title": "Toggle Direction"
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}