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Hi there friendly developer-folks

I have created a chart with highstock which is a superset of highchart, adding a so called 'navigator' (bottom chart to select a certain part of the chart).

I'm using an area-type chart and my goal is to color the areas above 0 green and red below 0. That works great in the actual chart but not in the navigator. Somehow the navigator doesn't display the area between the x-axis and the graph in red but the area below the graph. Here is an example: https://stackblitz.com/edit/react-58f7s8?embed=1&file=index.js

Did I miss something in the API, is that a bug or is it the expected behaviour?

Thanks in advance for your time!
G.

btw: here is the code-snippet (which you can also find in the stackblitz):

import React, Component from 'react';
import render from 'react-dom';
import ReactHighstock from 'react-highcharts/ReactHighstock';

class App extends Component 

 render() 
 const config = 
 chart: 
 type: 'area',
 ,
 series: [
 color: 'green',
 negativeColor: 'red',
 data: [29.9, 71.5, 106.4, -129.2, -144.0, -176.0, 35.6, 148.5, 148.5, -216.4, 194.1, 95.6, 54.4]
 ]
 ;
 return (
 <ReactHighstock config=config />
 );
 


render(<App />, document.getElementById('root'));

In case someone is looking for the same thing:
The solution is to add threshold: 0 here:

navigator: {
 series: 
 threshold: 0,
,

Check API