Examine source code of Search with Gemini

{
  "manifest_version": 3,
  "name": "Search with Gemini",
  "description": "Adds Gemini as a search engine and auto-fills prompts when using it.",
  "version": "0.1.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "search-with-gemini@example.com"
    }
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "Gemini",
      "keyword": "gem",
      "search_url": "https://gemini.google.com/?prompt={searchTerms}"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://gemini.google.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ]
}