Here is a look at the program. In this instance, TkSurfer is showing the inflated surface of a subject named "subject-name," the curvature in grayscale overlay, and a value overlay from a file named lh.dm.w.
The menu bar at the top of the Tools Window contains four menus. The File menu is for loading and unloading data and for saving changes. The Edit menu contains an undo item and selection utilities. The View menu contains options for specifying what data are displayed and configuring how these data are displayed. The Tools menu contains commands and utilities for working on data.