[NTG-context] Tikz & contextwiki

Hi, is it possible to run code involving the tikz module in the wiki ? I'm asking because there's such a piece of code on the Colors page <texcode> \usemodule[tikz] \starttext \tikz\shade[ball color=red!40!yellow] (0,0) circle (.15cm); \stoptext </texcode> and I couldn't make it work on the wiki by typing: <context> \usemodule[tikz] \starttext \tikz\shade[ball color=red!40!yellow] (0,0) circle (.15cm); \stoptext </context> -- Nicolas