Examine source code of nouvelonglet

{
  "manifest_version": 2,
  "name": "nouvelonglet",
  "version": "1.0.0",
  "description": "A modern, customizable new tab page with search, weather, and news",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "storage",
    "https://api.open-meteo.com/*",
    "https://duckduckgo.com/*",
    "https://nominatim.openstreetmap.org/*",
    "https://en.wikinews.org/*"
  ],
  "optional_permissions": [
    "geolocation",
    "*://*/*"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'; connect-src *;",
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "nouvelonglet@teblam.tech",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ],
        "optional": [
          "locationInfo"
        ]
      }
    }
  }
}