Two Areas of Interest First, let’s take a look at the Torsion interface, or more specifi cally at two areas of interest on that interface. In Figure 12.1, the full Torsion interface is shown with two areas highlighted (gray boxes). The fi rst area (1) is the editor window and shows the current source code we are editing. If you will look closely at the left side of this area, you will see a gray column with numbers in it. This strip is used to display the line number of every line of code in the editor. Additionally, it is used to select and display breakpoints. The second area (2) is actually a tabbed window containing each of the following tabs.