Examine source code of Gemini Clarity

{
  "manifest_version": 3,
  "name": "Gemini Clarity",
  "version": "1.0.0",
  "description": "Monitor Gemini context usage with visual clarity indicators",
  "permissions": [
    "activeTab",
    "storage"
  ],
  "host_permissions": [
    "https://gemini.google.com/*",
    "https://generativelanguage.googleapis.com/*"
  ],
  "background": {
    "scripts": [
      "src/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://gemini.google.com/*"
      ],
      "js": [
        "src/tokenizer.js",
        "src/content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_popup": "src/popup.html",
    "default_title": "Gemini Clarity"
  },
  "options_ui": {
    "page": "src/options.html",
    "open_in_tab": false
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "gemini-clarity@example.com",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    }
  }
}