Examine source code of NewTab Bookmarks

{
  "author": "Olivier Cuenot",
  "browser_specific_settings": {
    "gecko": {
      "id": "newtab-bm@oub",
      "strict_min_version": "109.0"
    }
  },
  "chrome_settings_overrides": {
    "homepage": "index.html"
  },
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "description": "A newtab page replacement that displays the toolbar bookmarks.",
  "homepage_url": "https://github.com/oub/newtab-bm",
  "icons": {
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "manifest_version": 3,
  "name": "NewTab Bookmarks",
  "optional_permissions": [],
  "permissions": [
    "bookmarks",
    "topSites"
  ],
  "short_name": "newtab-bm",
  "version": "0.0.0.4"
}