maximum number of label editing actions that can be undone. The default value is 10.
Paintbrush Radius
the radius (in voxels) of the circular paintbrush that is used for painting and erasing segmentation labels. The default value is 5. The radius can also be increased or decreased using the mouse wheel, while pressing 'p' to paint or 'e' to erase.
Text Scale
the scale factor for POI and landmark text labels. The default value is 0.75.
Color Theme
the user can choose between a light or a dark color theme.
