{
  "api_base": "https://signage.example.com",
  "api_token": "st_REPLACE_WITH_A_FULL_SCOPE_TOKEN",
  "overlay_base_url": "https://signage.example.com/thermo-overlay.html",
  "device_id": "DEVICE_OR_GROUP_ID",

  "source_file": "progress.example.json",
  "_source_url_alt": "https://example.com/fundraiser.json",

  "currency": "USD",
  "poll_interval_sec": 60,

  "position": "bottom-left",
  "width": 460,
  "height": 360
}