On Tue, 24 Nov 2020, Bruce Horrocks wrote:

The following is giving me a section title with triple underbars instead of single.

\definehead [Heading] [section] \setuphead [Heading] [style={\underbar}]

Change this to: \setuphead [Heading] [textcommand={\underbar}, numbercommand=\underbar]

\starttext \Heading{First level section heading} \underbar{This is single underlined as expected} \stoptext

(Same with \startHeading .. \stopHeading and for subsections, which is where I first noticed it.)

It looks quite attractive in its own way - and certainly acts as a visual highlight - just not quite what I was expecting. ;-)

Aditya