Thanks Wolfgang, you were totally right. I made a typewriting error - I discovered it with help of your examples. I also updated the module in the wiki - and I will make it multilingual as soon I will find a good doc about multilingual-commands. I tried to add colors over module-parameter - but it didn't work out. I changed in t-bibitem.tex: \setupmodule[itemspace=12,color=red] ... \def\bibref[#1]#2{\doifemptyelse{#2} {\color[\currentmoduleparameter{color}]{[\in[#1]]}} {\color[red]{[\in[#1], #2]}}} and in the biblist-test-files only following line has to be added: \setupcolors[state=start] The direct command \color[red]{...} is working, but the \color[\currentmoduleparamter{color}]{...} not - wether I add an \expanded or not. texexec gives following comments: color : empty is not defined I have the feeling that the module-parameter and the expand-commands are still a mysterious to me. Can you / anyone explain me, what I am doing wrong? Ciao