Examine source code of Custom Dark New Tab

{
  "manifest_version": 2,
  "name": "Custom Dark New Tab",
  "version": "1.0.0",
  "description": "A dark-mode new tab page with customizable search, weather, clock, notes, and quick links.",
  "permissions": [
    "storage",
    "geolocation",
    "https://api.open-meteo.com/*",
    "https://geocoding-api.open-meteo.com/*"
  ],
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "custom-dark-newtab@example.local",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "searchTerms"
        ],
        "optional": [
          "locationInfo"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "content_security_policy": "script-src 'self'; object-src 'self';"
}