Cannot update textStyle in tooltip with formatter

[pavelbabenko]

Hi! I'm trying to customize tooltip in series with type: 'custom' using formatted function, but I'm not able to change styles of text

    type: 'custom',
    data: [7000],
    tooltip: {
      formatter: (params: CallbackDataParams) => {
        return `Data: ${params.data}`;
      },
      textStyle: {
        fontSize: 20,
      },
    },

The result:

[zhiqingchen]

Yes, this is a problem. ~~custom tooltip in echarts uses html instead of svg, and html is not currently supported in wrn-echarts.~~

~~Alternatively, you can select svg rendering in the chart editor in echarts and locate if htm is used by the browser's review element.~~

We are also in the process of sorting out the relevant currently unsupported features.

[chj-damon]

is it possible to support this?

[zhiqingchen]

we will try it.

[zhiqingchen]

custom tooltip in echarts uses html instead of svg, and html is not currently supported in wrn-echarts.

This sentence is misrepresented

[zhiqingchen]

https://github.com/apache/echarts/issues/18339

It may be an issue of echarts.