This service creates 4 figures of each AFQ tract: axial, left sagittal, right sagittal, coronal. Please choose the t1 image slices you would like displayed. The default slices work well for the HCP t1 images if they have not been re-ACPC aligned. If you have ACPC aligned your t1 images using the ACPC alignment app on Brain Life the following values are a good starting point: coronal = 105, sagittal = 89, axial = 65. The img_min and img_max values refer to the value range displayed for the t1 image. The value range is calulated as follow (mean + img_min * std, mean + img_max * std). The default values are a good starting place, adjust them if your t1 is too dark or too light.