[Feature] about legend.emphasis api

[dmcisgood]

What problem does this feature solve?

Is set in the legend [emphasis] (https://echarts.apache.org/zh/option.html#legend.emphasis), why doesn't work, is I write the wrong case, or provide the configuration items of chaos here

What does the proposed API look like?

I also tried the same configuration, series.emphasis, but it seems to have no effect, a little confused

[echarts-bot[bot]]

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[helgasoft]

legend.emphasis is only for selectorLabel. Try this:

  legend: {
    selector: true,
    selectorLabel: { color: 'green' },
    emphasis: {
      selectorLabel: {
        backgroundColor: 'pink',
        color: 'brown',
      }
    }
  },