Dynamically updating theme only changes background

[elbojoloco]

Codepen

https://codepen.io/anon/pen/dLPoBM

Explanation

• What is the behavior you expect?
  Labels and tooltips (basically all theme-colored elements) should be updated when dynamically changing theme mode.

• What is happening instead?
  Only the background color of the chart is updating.

• What error message are you getting?
  No error.

[junedchhipa]

Thanks for providing the demo, I will look soon into it.

[cemujax]

Anyway, you can solve this way.

function updateTheme(mode) {
    chart.updateOptions({
        theme: {
            mode: mode
        },
        chart: {
          foreColor: mode === 'dark' ? '#f6f7f8' : '#373d3f'
        },
        tooltip: {
            theme: mode
        }
    })
}

[junedchhipa]

I am going to review the PR by @cemujax and release a fix soon.