$30
Create a C# program. It outputs a virtual flashing red light in a frame that we call the user interface (UI). Here is a drawing of the UI your program will output.
The entire UI is one large graphical area. However, a “title panel” is drawn horizontally at the top of the UI and a “control panel” is drawn horizontally at the bottom of the UI. The fact is that the UI is one single graphical area, but the viewer sees it as a window with three panels:
title panel, graph area, and control panel.