New chart type statically typed not working

[nnkolev]

Expected behavior

Following the documentation on how to type new charts (https://www.chartjs.org/docs/latest/developers/charts.html#typescript-typings), once the new chart is registered in ChartTypeRegistry, the properties registered for that chart type should be accessible.

Current behavior

After the new chart type is registered in ChartTypeRegistry some of the properties declared do not exist when we try to access them. How could we extend the chartjs types by adding custom properties?

Reproducible sample

https://codesandbox.io/s/clever-gagarin-05wchy?file=/src/chartjs.d.ts

Optional extra steps/info to reproduce

No response

Possible solution

No response

Context

No response

chart.js version

4.1.2

Browser name and version

No response

Link to your project

No response

[LeeLenaleee]

Can you please describe which properties you expected to be available and are not, when I look at it it seems like all your custom props are working

[elPandaFriki]

@LeeLenaleee this is also happening to me. On @nnkolev example you can not see the issue as he does not access directly the isDAC property outside of the initial configuration, but here you have my link with a reproducible sample afterwards:
https://codesandbox.io/s/chartjs-typings-05wchy?file=/src/components/App/Component.tsx

As you can see, i also defined a custom property "isCursor" at my configuration and in the re-declaration at chartjs.d.ts, but ChartJS says it is not defined for cases outside of the ChartConfiguration type.

[LeeLenaleee]

Duplicate of #11064