Design effects in WPF (tricks to enhance app's appearance)

c#, wpf, wpf-controls

Solution

I found the following examples:

Vista Buttons:

Innerglows:

Glass Buttons:

Problem

I have developed an application that must be presented on exhibition as advertising. I want it to look more sexy! What tricks do you know that enhance the appearance of your applications? What are the best design effects the developer can use for its application? I am speaking about: glowing, shadows, maybe forms of buttons, beautiful animation of splash screens and so on. What is YOUR favourite effect?

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