I used to draw in transparent color in MetaFun with:

   newinternal tfill_mode; tfill_mode := 1; % transparency mode for inside
   newinternal tfill_fact; tfill_fact := 1; % transparency factor for inside
   def withFillColor = withcolor transparent(tfill_mode, tfill_fact, fillcolor_) enddef;
   fill somepath withFillColor;

Suddenly (since the june update I guess) this fails.
Because

   fill somepath withcolor fillcolor_;

is still working I wonder if something has done to this transparency business.
If there was a change, why? It brings me trouble.

Hans van der Meer