Examine source code of RTL Chat Converter

{
  "manifest_version": 3,
  "name": "RTL Chat Converter",
  "version": "2.0.1",
  "description": "Convert chat pages to Right-To-Left with toggle capability.",
  "browser_specific_settings": {
    "gecko": {
      "id": "rtl-chat-converter@edrisahani.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "strict_min_version": "140.0"
    }
  },
  "permissions": [
    "activeTab",
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_title": "RTL Chat Mode",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon.png",
      "48": "icon.png",
      "128": "icon.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}