Visual Binary Tree Winforms Application

Last year I created a Winforms application that uses 2D graphics to display binary trees, I have recently revisited it to make several improvements and bug fixes.  The binary tree is compiled as a DLL, which is used by the application which has the following features:

• Node Insertion & Deletion
• All Modes of Traversal
• Customize-able Colour Scheme
• Saving & Loading of Either Colour Scheme or Tree
• Node Encryption When Saved to File

Here are some screenshots of the application (click to zoom):

The program demonstrates the following:

• Dynamic Programming & Reflection (Requires .NET 4)
• 2D Graphics (GDI+)
• Generics
• Class Constraints
• File Handling (CryptoStream)
• LINQ

You can download the executable as well as the source by going to the downloads page.