Examine source code of LumaTab

{
  "manifest_version": 3,
  "name": "LumaTab for Firefox",
  "version": "1.0.0",
  "description": "A calm, beautiful, fast new tab page. Living backgrounds, automatic theming, widgets and privacy-first personalization.",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "lumata-tab@thesajidalam.dev",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "chrome_url_overrides": {
    "newtab": "src/newtab/index.html"
  },
  "options_ui": {
    "page": "src/settings/index.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "src/background/background.js"
    ],
    "type": "module"
  },
  "permissions": [
    "storage",
    "unlimitedStorage"
  ],
  "optional_permissions": [
    "bookmarks",
    "history",
    "downloads",
    "sessions",
    "clipboardRead",
    "topSites",
    "geolocation"
  ],
  "optional_host_permissions": [
    "https://api.open-meteo.com/*",
    "https://geocoding-api.open-meteo.com/*"
  ],
  "action": {
    "default_title": "LumaTab",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png"
    }
  }
}