C# - How to initialize gradient panel demo?

I found a web开发者_Go百科 page that describes how to create a gradient panel in a WinForms application.

Does anyone know how to initialize this panel demonstration? There is source code but no comments or examples how the code can be used.

You build the project to get a DLL (to add as a reference), or embed the code in your project. On your forms designer, you should see a new item in your toolbox, drag it onto your form.

It has properties for colour etc. Is this any help?