backstop.json

{
  "id": "drupal-starter",
    "viewports": [
    {
      "name": "mobile",
      "width": 360,
      "height": 640
    },
    {
      "name": "desktop",
      "width": 1350,
      "height": 940
    }
  ],
  "scenarios": [
    {
      "label": "Home",
      "url": "TEST_URL/",
      "referenceUrl": "https://example.com/",
      "delay": 3000,
      "hideSelectors": [
        ".embed-container"
      ]
    }
  ],
  "paths": {
    "bitmaps_reference": "backstop_data/bitmaps_reference",
    "bitmaps_test": "backstop_data/bitmaps_test",
    "engine_scripts": "backstop_data/engine_scripts",
    "html_report": "backstop_data/html_report",
    "ci_report": "backstop_data/ci_report"
  },
  "report": ["HTML","CI"],
  "engine": "puppeteer",
  "engineOptions": {
    "args": ["--no-sandbox"]
  },
  "asyncCaptureLimit": 5,
  "asyncCompareLimit": 50,
  "debug": false,
  "debugWindow": false
}