[NTG-context] itemize + color question

Dear gang, This seems like a very easy one, but I can't figure it out: on my slides, I want numbered itemizations to appear item by item, and I want the previous items to be "greyed out." I think this can only be done by combining two itemize environments. This is what I tried: \setupitemize[1][n,packed,joinedup] \startitemize[color=darkgray] \item \color[darkgray]{one} \stopitemize \startitemize[color=white][continue] \item two \stopitemize But the switches color=something and continue seem to exclude each other: either I get a continued item numbered "2," but in grey, or I get a white item number "1". There must be some obvious mistake, but where? Thanks, and best Thomas