[Freesurfer] changing label outlines in tksurfer

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Dear experts,

I’m visualizing a 1st level sig-map together with two specific label files using tksurfer (Freesurfer version 6.0). I’ve extracted those labels before using mri_annotation2label. I would like to change the colours of the label outlines. This is probably a very simple thing to do, but I am somehow stuck and would appreciate any help. Here my code:

tksurfer Case01 lh inflated \ -tcl my_script.tcl \ -label-outline \ -label ${label_dir}/lh.label1.label\ -label ${label_dir}/lh.label2.label\ -o ${contrast_dir}/contrast1l/sig.nii.gz

with the .tcl file containing the following: labl_set_color 0 0 0 255 labl_set_color 1 0 255 255 make_lateral_view rotate_brain_x -30 redraw

Thanks for your help! Martin