Hello Hans & Taco, I didn't try to inspect the reasons for it (I woulg get lost in the code anyway), but it has brought a smile on my face: \type{btex ... etex} simply "forgets" to typeset "etex". \setupcolors[state=start] \setuptype[option=MP] \starttext \startbuffer This is an example of \type+btex ... etex+ syntax. \stopbuffer \typebuffer \getbuffer \stoptext Is there a chance to typeset the whole comment line with the same font (color) when using TEX or MP for syntax highlighting? Now the comments can hardly be distinguished from the rest of the code. Mojca