Examine source code of Homepage++

{
  "manifest_version": 3,
  "name": "Homepage++",
  "description": "A web browser extension that allows you to customize your new tab/homepage with fonts, colours, weather and more.",
  "homepage_url": "https://alexflipnote.dev/homepage_plusplus/",
  "version": "2.7.8",
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "icons": {
    "16": "images/16.png",
    "32": "images/32.png",
    "48": "images/48.png",
    "128": "images/128.png"
  },
  "action": {
    "default_icon": "images/logo.png",
    "default_popup": "window.html"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "minimum_chrome_version": "89",
  "browser_specific_settings": {
    "gecko": {
      "id": "{0eb078c8-76a6-4be0-acef-259ed616a5b0}",
      "strict_min_version": "58.0"
    }
  },
  "permissions": [
    "geolocation",
    "storage",
    "topSites",
    "favicon",
    "search"
  ],
  "host_permissions": [
    "https://api.met.no/*",
    "https://*.openstreetmap.org/*"
  ]
}