Hello, I am new to freesurfer, I used recon-all and it finished, I can get the thickness map,and i have some questions about the tksurfer tools. I paste a picture of the tksurfer tool window in the accessory,and i have labeled 3 areas. In area 1, I think is the thickness information, what does the number 3.274984 mean? In area 3, what is the funtion of the red and green line? Best Regards.