Created attachment 1017 [details]
Resulting image

Running the following code gives the attached image, in which we can see that all the Hatch Brush styles give the same result.

        private static void Main(string[] args)
        {
            var path = $@"{AppDomain.CurrentDomain.BaseDirectory}Chart{DateTime.Now.Ticks}.png";

            var tChart1 = new TChart();


            foreach (Steema.TeeChart.Drawing.HatchStyle hatchStyle in Enum.GetValues(typeof(Steema.TeeChart.Drawing.HatchStyle)))
            {
                var bar1 = new Steema.TeeChart.Styles.Bar(tChart1.Chart);
                bar1.Add((int)hatchStyle);

                bar1.Brush.Style = hatchStyle;
                bar1.Brush.Color = System.Drawing.Color.Red;
                bar1.Brush.ForegroundColor = System.Drawing.Color.Blue;
            }

            tChart1.Header.Text += $" version {Steema.TeeChart.Utils.Version}";

            var png = tChart1.Export.Image.PNG;
            png.Width = 550;
            png.Height = 550;
            png.Save(path);

            new Process
            {
                StartInfo = new ProcessStartInfo(path)
                {
                    UseShellExecute = true
                }
            }.Start();
        }