Examine source code of TouchOfBeauty: New Tab Art

{
  "manifest_version": 3,
  "name": "New Tab Art",
  "version": "1.0.0",
  "description": "Shows a random piece of art on each new tab, from Google Arts & Culture and the Metropolitan Museum of Art.",
  "browser_specific_settings": {
    "gecko": {
      "id": "art-new-tab@lpo",
      "strict_min_version": "121.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "permissions": [
    "storage",
    "alarms"
  ],
  "host_permissions": [
    "https://collectionapi.metmuseum.org/*",
    "https://images.metmuseum.org/*",
    "https://lh3.googleusercontent.com/*",
    "https://artsandculture.google.com/*"
  ]
}