In regard to the surface files, is it correct to say that the wm and pial vertices correspond to each other (e.g., wm vertex # 12345 corresponds to pial vertex # 12345 as the minimum distance between the two surfaces), and so have the same number of vertices?

Also, I would like to "colorize" voxels, but not for segmentation.  Instead, colored voxels would represent various metric "anomalies".  It's rather easy with curv files for 3D display (positive or negative values at vertex), but I want to show this on tkmedit in 2D.  Could you explain what is the easiest way to do this?

Thanks,

John