What is a class?
A class is a blueprint from which objects can be created.
(Sometimes I will refer to a class as a recipe. Sometimes I refer to a class as a set of plans.)
The Alice gallery contains several hundred classes:
From which you can create objects and add them to your worlds.
Figure 1 shows a screen shot of the thumbnail for the class named Hare in the gallery.
Note the word Class that appears in the top of the image.
Figure 1. The thumbnail for the class named Hare in the gallery.