Dear all, I am a newbie in ConTeXt. I am accustomed to use pgf in LaTeX and have seen that pgf is also a module for ConTeXt. When using some of my pgf macros in ConTeXt, I had several erros coming from the fact that colors are defined by the "same" command in both pgf and ConTeXt, namely \definecolor[mycolor][r=,g=,b=] in ConText and \definecolor{mycolor}{rgb}{,,} in pgf. It seems to me impossible to use the pgf command directly and, in the same time, impossible to use ConTeXt-defined color in pgf macros. Here is an example : \usemodule[pgf] \definecolor[mycolor][r=0.5,g=0.5,b=0.5] \starttext \pgfdeclarehorizontalshading{myshading}{1cm}{% color(0cm)=(mycolor);color(1cm)=(green)} \pgfuseshading{myshading} \stoptext There is an error with \definecolor and the shading. If you replace (mycolor) by (red) in the shading and suppress the \definecolor, it is fine. Best regards.