Examine source code of Huh?

{
  "manifest_version": 3,
  "name": "Huh?",
  "version": "1.0.0",
  "description": "See something you don't know? Huh?",
  "action": {
    "default_popup": "index.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "content.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://*.googleapis.com/*",
    "https://api.openai.com/*",
    "https://api.anthropic.com/*",
    "https://openrouter.ai/*",
    "https://api.x.ai/*",
    "https://api.groq.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@huh.app",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    }
  }
}