Examine source code of MatchaTab

{
  "manifest_version": 3,
  "name": "MatchaTab",
  "version": "1.0.0",
  "description": "Hyper-specifically customizable new tab experience.",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "matchatab@rosematcha.com",
      "strict_min_version": "109.0"
    }
  },
  "action": {
    "default_title": "Reese's New Tab"
  },
  "offline_enabled": true
}