Thanks Wolfgang.
calm down.
Done. I've let some steam off earlier on. OoOo<:O)
\setuphead[chapter][style=\
myHeadingsFont\myChapterFont]
You have to load 'myHeadingsfont' typescript before you can use them because they are not available on outer level, only fonts used as bodyfont can be accesed without this selection.
That works indeed.
I found the information to solve your problem in the fonts manual and you should read it if you need more information.
Oh, the number of times I read it. One more time a moment ago. Sooo... the Da Fonti Code is hidden in there. In which section of the manual did you find the clue ? In my quest to further understand how this stuff works, I've been testing the following... \setuppapersize [A4][A4] \starttypescript [serif] [mySerifFont] \definefontsynonym [mySerifFontRegular] [name:Times New Roman] [features=default] \definefontsynonym [mySerifFontItalic] [name:Times New Roman Italic] [features=default] \definefontsynonym [mySerifFontBold] [name:Times New Roman Bold] [features=default] \definefontsynonym [mySerifFontBoldItalic] [name:Times New Roman Bold Italic] [features=default] \stoptypescript \starttypescript [serif] [mySerifFont] \setups[font:fallback:serif] \definefontsynonym [Serif] [mySerifFontRegular] \definefontsynonym [SerifItalic] [mySerifFontItalic] \definefontsynonym [SerifBold] [mySerifFontBold] \definefontsynonym [SerifBoldItalic] [mySerifFontBoldItalic] \stoptypescript %\starttypescript [mySerifFont] % \definetypeface [mySerifFont] [rm] [serif] [mySerifFont] [default] %\stoptypescript \starttypescript [sans] [mySansFont] \definefontsynonym [mySansFontRegular] [name:Arial] [features=default] \definefontsynonym [mySansFontItalic] [name:Arial Italic] [features=default] \definefontsynonym [mySansFontBold] [name:Arial Bold] [features=default] \definefontsynonym [mySansFontBoldItalic] [name:Arial Bold Italic] [features=default] \stoptypescript \starttypescript [sans] [mySansFont] \setups[font:fallback:sans] \definefontsynonym [Sans] [mySansFontRegular] \definefontsynonym [SansItalic] [mySansFontItalic] \definefontsynonym [SansBold] [mySansFontBold] \definefontsynonym [SansBoldItalic] [mySansFontBoldItalic] \stoptypescript %\starttypescript [mySansFont] % \definetypeface [mySansFont] [ss] [sans] [mySansFont] [default] %\stoptypescript \starttypescript[myFonts] \definetypeface [mySerifFont] [rm] [serif] [mySerifFont] [default] \definetypeface [mySansFont] [ss] [sans] [mySansFont] [default] \stoptypescript \usetypescript[myFonts] \setupbodyfont[mySerifFont,12pt] % this displays the correct font %\setupbodyfont[mySansFont,12pt] % this displays the correct font \definefont[myChapterFont][mySansFont sa 1.728] % compile error at line 57 with (2) [and (1)] %\definefont[myChapterFont][Arial sa 1.728] % this works with (1), compile error at line 57 with (2) %\definefont[myChapterFont][Sans sa 1.728] % defaults to LM font with (1), compile error at line 57 with (2) %\setuphead[chapter][style=\myChapterFont] % (1) %\setuphead[chapter][style=\myFonts\myChapterFont] % (2) %\setuphead[chapter][style=\tfc\mySansFont] % (3) this works \starttext \chapter{chapter test} % line 57 \section{section test} text test \stoptext Looking for further clues. Alan P.S. Resistance is futile Fontzi...I will assimilate you!