Torque3D shadows

I dont have Torque 3D so I hope somebody may answer this. Does T3D allows for shadows with different 'darkness'? I plan to have some semi ethereal characters (i.e. ghosts) and I want the shadow for those characters to be less visible than others. So a normal person will have a dark shadow while a ghost will have just a gray shadow.

Is this possible?

Thanks!
Guimo