Setting color on non limb CAT bones using Max Script

[jonathanjASQ6E]

$.transform.controller.Bone.Limb.LimbColour = (color 1 1 1) works for setting arm and leg colors 

but I can't find how to set colors on bones created using the "Add Bone", "Add Spine", and "Add Tail" buttons.

any help would be appreciated.

also is there any good documentation on using Maxscript with CAT?