in src/barChart.ts [680:692]
private getColorValue(color: Fill | string): string {
// Override color settings if in high contrast mode
if (this.host.colorPalette.isHighContrast) {
return this.host.colorPalette.foreground.value;
}
// If plain string, just return it
if (typeof (color) === 'string') {
return color;
}
// Otherwise, extract string representation from Fill type object
return color.solid.color;
}