Hi! 1) If i write %%% \definefontfamily [luface] [rm] [Adobe Garamond Pro][opticalsize=yes] \definefontfamily [luface] [ss] [FrutigerLTstd][opticalsize=yes] \definefallbackfamily [luface] [math] [Adobe Garamond Pro] [math:uppercasenormal] \definefallbackfamily [luface] [math] [Adobe Garamond Pro] [math:uppercaseitalic] \definefallbackfamily [luface] [math] [Adobe Garamond Pro] [math:lowercasenormal] \definefallbackfamily [luface] [math] [Adobe Garamond Pro] [math:lowercaseitalic] \definefallbackfamily [luface] [math] [Adobe Garamond Pro] [math:digitsnormal] \definefontfamily [luface] [math] [Tex Gyre Pagella Math] \definebodyfontenvironment[18pt] \setupbodyfont[luface,18pt] %%% it works well. What if I want to change TeX Gyre Pagella Math to Iwona? It turns out I cannot just change it to "Iwona", "iwona", "Iwona Math", ... Other fonts seem to work, but Iwona no? 2) Say that I change the third last line above into \definefontfamily [luface] [math] [Tex Gyre Pagella Math][scale=0.8] to make the fonts fit better in size. Then the Adobe Garamond Pro in math mode also scales with the factor 0.8, which looks bad. Is there a way to scale only the TeX Gyre Pagella Math? Adding scale=1 to the \definefallbackfamily commands does not seem to change anything. /Mikael