Can't disable emphasis state in Echarts 5.x ?

Version

5.1.1

Reproduction link

https://jsfiddle.net/qcmgetan/

Steps to reproduce

Simply mouse over the serie.

What is expected?

Emphasis state should be disabled

What is actually happening?

Emphasis state is not disabled

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I can’t manage by any way to prevent my series to go in emphasis state on mouse over, though emphasis.focus: "none" and emphasis.scale: false or even serie.silent: true are set.

lineStyle.width grows to 1px more and areaStyle.color also change. The weird part is that if you set serie.emphasis.lineStyle.width to 1 it takes account of it and “fix” the problem, so it looks like emphasis is still enabled therefore emphasis.scale is set to false. I could go with that but I couldn’t manage to find a way to set serie.areaStyle.opacity as identical.

If I set serie.emphasis: null, serie.lineStyle.width do not change but serie.areaStyle.color does.

I did not have this issue with Echarts 4.x

[Sakkyoku-Sha]

+1

On very large series this leads to some performance loss, ideally this functionality can be disabled altogether.

[plainheart]

Overall, it would be better to revert the design about ‘[Design] Bolder lineWidth when hover.’ #12931