Fortunately, I was able to merge <feckless-fieldset> and <field-list>
functionality to produce <field-list-star-required> which highlights the
field labels with an asterisk that can be styled using css. It is very
limited, but it does exactly what I need so I may upload it as a recipe
for others to examine (and hopefully extend). To use it, all you need
is to change <field-list> to <field-list-star-required> and add a list
of required fields.
Don Z.
I figured out a quick and dirty method of implementing a Required Field
Highlighter and posted it as a recipe. It does exactly what I needed,
no more, no less.
Many thanks for the pointer to <feckless-fieldset> which gave me the
hint I needed to create the new tag.
Don Z.