Examine source code of Stellar Homepage

{
  "manifest_version": 3,
  "name": "StellarPage",
  "version": "1.2",
  "description": "New tab page with starmap",
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "stellar-homepage@carson.dev"
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "assets/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}