DotstarWing dotStarWing;
MicroGraphics graphics;
public override Task Initialize()
{
    Console.WriteLine("Initialize...");
    var spiBus = Device.CreateSpiBus();
    dotStarWing = new DotstarWing(spiBus)
    {
        Brightness = 0.1f
    };
    graphics = new MicroGraphics(dotStarWing)
    {
        CurrentFont = new Font4x6()
    };
    return Task.CompletedTask;
}
public override Task Run()
{
    graphics.Clear();
    graphics.DrawRectangle(0, 0, 8, 4, Color.LawnGreen, true);
    graphics.DrawRectangle(2, 2, 8, 4, Color.Cyan, true);
    graphics.DrawText(0, 0, "F7", Color.White);
    graphics.Show();
    return Task.CompletedTask;
}