[metapost] Problem with colors

[Taco Hoekwater]

On 08/07/2010 10:25 PM, Steve Checkoway wrote:
> If I use the following MP program, I get a red X exactly as I would expect. If I change red to any of cyan, magenta, or yellow, I get an error. I'm not entirely sure what I'm doing wrong.
>
> If I change the \color{yellow} to \color[rgb]{1,1,0} then I can get yellow text. (Presumably, I can do the same with cyan or magenta, but I didn't test it.)

Can you post the .mpx file contents? I cannot predict what
in the dvi (and therefore in the mpx) file.

Best wishes,
Taco