Here, we will take our first steps into Visual Studio's code editing capabilities. As previously explained, this will be a very simple script with some, but with very little, explanation.
Now, double-click on the grayed-out RectAnim script to open Visual Studio:
Once it is loaded, your screen should look comparable to this:
You should see the RectAnim.cs filename highlighted in the left-upper corner. When a developer writes code, this is where we do it. Currently, you will see a couple of namespace declarations, the class name, ...