# annotations.markSizes

Part of [Annotations](https://kernstra.com/docs/web-sdk/config/annotations) in the Kernstra Web SDK 1.0.0 configuration reference.

- Type: `readonly number[]`
- Default: `12, 16, 20, 28, 40`
- Page: https://kernstra.com/docs/web-sdk/config/annotations/marksizes

The Marks tools' sizes (pt): a tick, a cross, a dot. A form's box is 10–14 pt, a checklist's 20. Sorted and de-duplicated.

Web page: https://kernstra.com/docs/web-sdk/config/annotations/marksizes