Render the zero line in a darker color and wider width

[jonluca]

Is your feature request related to a problem? Please describe.

No

Describe the solution you'd like

All x axis grid lines are the same color. It would be nice if we could have the zero line be a different color, and a different width, so it's clear when the values cross the 0 line.

Additional context

N/A

[timocov]

What's about something like this https://jsfiddle.net/cfn30ovL/ ?

[jonluca]

Yes this works great, thanks @timocov!

Do we need to clean up the pricelines individually before we call removeSeries, or will they be cleaned up automatically?

ie do we need to do

const barSeries = chart.addBarSeries({
  thinBars: true,
  downColor: '#000',
  upColor: '#000',
});

const line = barSeries.createPriceLine({ price: 0, color: 'red', axisLabelVisible: false, lineStyle: LightweightCharts.LineStyle.Solid });

...

barSeries.removePriceLine(line)
chart.removeSeries(barSeries)

or can we just call

chart.removeSeries(barSeries)

and that will clean up the price line as well

[timocov]

Do we need to clean up the pricelines individually before we call removeSeries, or will they be cleaned up automatically?

All lines attached (or created within) to a series will be removed when the series is removed.

and that will clean up the price line as well

Yes, it will work as expected.