Highcharts Stockchart gui default line annotation color black

Question

HighStockchart gui default line annotation color "black" . i need to change this color to "blue" color. when using dark theme in highstock chart its difficult to identify black color line. how can I change this color default to "blue" without manually changing it.

https://www.highcharts.com/demo/stock/stock-tools-gui/dark-unica

Answer 1

You can set stroke for all annotations:

navigation: {
  annotationsOptions: {
    shapeOptions: {
      stroke: 'red'
    }
  }
}

---

or specify annotationsOptions only for segment :

navigation: {
  bindings: {
    segment: {
      annotationsOptions: {
        shapeOptions: {
          stroke: 'red'
        }
      }
    }
  }
}

---

Live demo: https://jsfiddle.net/BlackLabel/14qt9Le0/

API Reference: https://api.highcharts.com/highstock/navigation.bindings.segment