Hello list,

The following example does not compile, complaining “Missing number, 
treated as zero
needed to see a number, look up 'weird error' in the index to The TeXbook”:

    \setuphead           [chapter]
                          [
                           textstyle=cap,
                          ]
    \starttext
    \startchapter        [title={Oops!}]
    \input knuth-gpt \par
    \stopchapter
    \stoptext

Replacing the textstyle /cap/ by any of /bold/, /slanted/, /smallcaps/, 
and /italic/ results in a clean compilation but the indicated style is 
not applied. Using a style description like /em/, /\em/, /bf/, /\bf/, 
/\sc,/ does produce the suggested result. The wiki and mail repository 
are full of examples with the former style names.

Using /style=cap/ (which would change the number as well) also results 
in a failed compilation, while using /style=bolditalic/ works as it should.

ConTeXt  ver: 2023.09.26 18:19 LMTX  fmt: 2023.10.9  int: english/english

-- 
Rik