[PD] another small gem problem

[Oded Ben-Tal]

> this might be the case: afaik [rgb2hsv] is also part of markEx (which used to 
> be part of Gem but is no more; only the hsv<->rgb functions have stayed as 
> abstractions)
>
> do you have other markEx objects like [tripleLine]?
>

Yes. that explains things
thanks
Oded