I see the black halo's purpose as for changing Morph ownership
hierarchy, not moving or positioning.  Brown halo is for moving.

2012/3/31 Stéphane Rollandin <lecteur at zogotounga.net>:
>> Well, that was the primary _effect_ I want -- not a side-effect.
>
>
> Sorry but that is not acceptable. For fine-tuning of the morph position, the
> halo must be stable: just grabing the handle should not move the morph.
>
> Think of it this way: you grab the morph via the halo handle, then decide
> that eventually you do not want to move it: esay, you just release the
> handle and that'is it. But if the morph has been moved immediately, how do
> you get back to the initial position ?
>
> Also, a morph may have a specific behavior depending on its precise
> position, and it is then crucial to be able to change the position
> continuously.
>
> As far as I am concerned, this change would completely break my code. I am
> strongly opposed to it.
>
> Best,
>
>
> Stef
>
>
>