Examine source code of Claude RTL Toolkit

{
  "manifest_version": 3,
  "name": "Claude RTL Toolkit",
  "version": "1.2.2",
  "description": "Right-to-left support and per-section typography for claude.ai — per-message RTL/LTR, fonts, line numbers. Multilingual.",
  "permissions": [
    "activeTab",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "claude-rtl-toolkit@rezabagheri",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "Claude RTL Toolkit",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "https://claude.ai/*"
      ],
      "js": [
        "config.js",
        "content.js"
      ],
      "css": [
        "styles.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "fonts/*.woff2"
      ],
      "matches": [
        "https://claude.ai/*"
      ]
    }
  ]
}