I've been reading up on tkviewer etc. but can't figure out how to accomplish the following:

I calculated some stats (outside Freesurfer) summarizing the relation between cortical thickness and my outcome measure, per region present in the Killiany/Desikan atlas (i.e. running analyses on data obtained from aparcstats2table). Now I'd like to visualize these results, one number per region, by projecting them on the standard brain such that regions that showed a stronger association are more yellow and regions with weaker association are more red. Is there a straightforward way of doing this? I was thinking of maybe adjusting the RGB values in FreeSurferColorLUT.txt file?