Changes

{\setupbodyfont[latinmodern,20pt16pt] With latin modern \getbuffer[demo]} % default{\setupbodyfont[pagella,16pt] With pagella \getbuffer[demo]} % or palatino{\setupbodyfont[termes,16pt] With termes \getbuffer[demo]} % or times{\setupbodyfont[bonum,16pt] With bonum \getbuffer[demo]} % or bookman{\setupbodyfont[schola,16pt] With schola \getbuffer[demo]} % or schoolbook