spectre.console/examples/Panel/Program.cs

using Spectre.Console;

namespace PanelExample
{
    public static class Program
    {
        public static void Main()
        {
            var content = new Markup(
                "[underline]I[/] heard [underline on blue]you[/] like panels\n\n\n\n" +
                "So I put a panel in a panel").Centered();

            AnsiConsole.Render(
                new Panel(
                    new Panel(content)
                    {
                        Border = BorderKind.Rounded,
                    }));

            // Left adjusted panel with text
            AnsiConsole.Render(new Panel(
                new Text("Left adjusted\nLeft").LeftAligned())
            {
                Expand = true,
                Header = new Header("Left", new Style(foreground: Color.Red)).LeftAligned(),
            });

            // Centered ASCII panel with text
            AnsiConsole.Render(new Panel(
                new Text("Centered\nCenter").Centered())
            {
                Expand = true,
                Border = BorderKind.Ascii,
                Header = new Header("Center", new Style(foreground: Color.Green)).Centered(),
            });

            // Right adjusted, rounded panel with text
            AnsiConsole.Render(new Panel(
                new Text("Right adjusted\nRight").RightAligned())
            {
                Expand = true,
                Border = BorderKind.Rounded,
                Header = new Header("Right", new Style(foreground: Color.Blue)).RightAligned(),
            });
        }
    }
}