Examine source code of Claude ReFlow

{
  "manifest_version": 3,
  "name": "Claude ReFlow",
  "version": "1.2.0.4",
  "description": "Redesign Claude.ai sidebar with custom themes and quick access features",
  "permissions": [
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "https://claude.ai/*"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "Claude ReFlow"
  },
  "options_page": "options.html",
  "content_scripts": [
    {
      "matches": [
        "https://claude.ai/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "inject.css"
      ]
    }
  ],
  "icons": {
    "16": "images/icon-16.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "reflow@blacklink0",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}