# tools.check

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

- Type: `boolean`
- Default: `on, within the mode`
- Page: https://kernstra.com/docs/web-sdk/config/tools/check

Marks menu: a tick placed with one click, in the Marks bar's ink and size (pen-dark and 20 pt to start). Needs the `annotations` license feature. `check`, `cross` and `dot` are tools of their own, so a host offers the three, two or none; the Marks menu goes with its last member.

Web page: https://kernstra.com/docs/web-sdk/config/tools/check