How can I change to border color of a stacked column

[Albert634515]

How can I change to border color of a stacked column

[beto-rodriguez]

Try using the stroke property

Series = new ISeries[]
{
    new StackedColumnSeries<int>
    {
        Values = new List<int> { 3, 5, 3, 2, 5, 4, 2 },
        Stroke = new SolidColorPaint(SKColors.Red) { StrokeThickness = 4 },
        Fill = null,
    },
    new StackedColumnSeries<int>
    {
        Values = new List<int> { 4, 2, 3, 2, 3, 4, 2 },
        Stroke = new SolidColorPaint(SKColors.Blue) { StrokeThickness = 8 },
        Fill = null,
    },
    new StackedColumnSeries<int>
    {
        Values = new List<int> { 4, 6, 6, 5, 4, 3 , 2 },
        Stroke = new SolidColorPaint(SKColors.Green) { StrokeThickness = 12 },
        Fill = null,
    }
};