Welcome to your first Blender scene! We had a brief introduction to the user interface in Chapter 1, Introduction to 3D and the Blender User Interface, but now we can see it with our own eyes. The largest area of the UI is dedicated to the 3D Viewport (or just "Viewport" for short). You can see all of the 3D objects inside this area. This scene has been set to use the new Random Colors feature, which gives all of the objects false colors so that they are easier to identify in the Viewport, as shown in the following screenshot:
The random colors ...