Examine source code of Gemini UI Enhancer

{
  "manifest_version": 3,
  "name": "Gemini UI Enhancer",
  "version": "1.0",
  "description": "Navegação por bolinhas, modo foco e cópia Markdown rica para o Google Gemini.",
  "permissions": [
    "clipboardWrite",
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "gemini-ui-enhancer@gabriel.local",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "64": "icons/icon64.png",
    "96": "icons/icon96.png",
    "128": "icons/icon128.png"
  },
  "host_permissions": [
    "*://gemini.google.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://gemini.google.com/*"
      ],
      "css": [
        "styles.css"
      ],
      "js": [
        "content.js"
      ]
    }
  ]
}