chromium/components/test/data/payments/paulpay.test/pay

{
  "default_applications": ["pay"],
  "name": "Paul Pay",
  "icons": [{
    "src": "../icon.png",
    "sizes": "40x40",
    "type": "image/png"
  }],
  "serviceworker": {
    "src": "app.js"
  }
}