Hi Using context experimental 2011.03.18 I get this line when using definebodyfontenvironment: fonts > beware: fontclass ignored (if needed use: [fontclass][size][settings]) Minimal example: http://wiki.contextgarden.net/Reference/en/definebodyfontenvironment %%% \starttext \definefontsize[e] \definebodyfontenvironment [default] [b=4,e=10] This will be {\tfb really} {\bfe Huge} \stoptext %%% This also happens for the s-map-10 module, which seems to be broken anyway. What is the proper use of definebodyfontenvironment then? Adam