Category chart brushes are documented as string [], but example is string

[kdinev]

1. Open https://www.infragistics.com/products/ignite-ui-angular/api/docs/typescript/latest/classes/igniteui_angular_charts.IgxCategoryChartComponent.html#brushes
2. Notice the type for brushes is string []
3. The code example for the input below is Brushes="#ff0000, #cc0000, #aa0000"

The same issue is applicable to outlines, negativeOutlines, negativeBrushes, markerOutlines, etc.