Markus, Martin I don't have anything to add to Markus' conundrum, but as you are looking at control of font sizes, you might stumble on a way to have Therion hide text (or symbols) of particular scales, ie xs and s
This old forum post describes the problem I am trying to solve. http://article.gmane.org/gmane.comp.gis.therion/1661/match=hide+font >try simply this in your thconfig (see the chapter Customizing text labels in the thbook): code metapost fonts_setup(6,8,10,14,20); Thanks Bruce
