C# Online Compiler | .NET Fiddle

using System;

public class Image
{
}

public interface IFilter
{
	void Apply(Image image);	
}

public class VividFilter: IFilter
{
	public void Apply(Image image)
	{
		Console.WriteLine("Vivid Filter");
	}
}

//Third Party Class
public class Caramel 
{
	public void Init()
	{
	}
	
	public void Render(Image image)
	{
	}
}

public class CaramelFilter: IFilter
{
	private Caramel caramel;
	
	public CaramelFilter(Caramel caramel)
	{
		this.caramel = caramel;
	}
	
	public void Apply(Image image)
	{
		caramel.Init();
		caramel.Render(image);
		Console.WriteLine("Caramel Filter");
	}
}
 
public class ImageView
{
	private Image image;
	public ImageView(Image image)
	{
		this.image = image;
	}
	
	public void Apply(IFilter filter)
	{
		filter.Apply(image);
	}
}

					
public class Program
{
	public static void Main()
	{
		var imageView = new ImageView(new Image());
		imageView.Apply(new VividFilter());
		imageView.Apply(new CaramelFilter(new Caramel()));
	}
}

Cached Result

Action executed: Action1
Action executed: Action2
Action undone: Action2
Action redone: Action2
Top Undo Action: Action2
Action1 found in undo stack: True