[NTG-context] colors in metafont

[Taco Hoekwater]

Hans van der Meer wrote:
> Normally metapost/metafun starts out drawing in black.
> 
> Is it possible to change this globally, so that "withcolor xyz" is  not 
> needed everytime another color is wanted?
> 
> Also is it possible to "get/save/restore" the current drawing color  (a 
> la savepen) in metapost/metafun?
> 
> I searched through various manuals but I might have missed the  reference.

not precisely, but drawoptions() comes close.

   beginfig(1);
   drawoptions(withcolor red);
   fill unitsquare scaled 20;
   drawoptions();
   fill unitsquare scaled 10;
   endfig;

Cheers, Taco