>> I played around a bit more, and I think it looks good if the
>> vertical space right before the part entry gets increased a bit,
>> see attached image.
>
> I think it will be safest to keep the same size for the text,
> and just to use increased spacing before the part line to separate
> it visually.
Yes, this is my conclusion, too.
> I used a skip before a part line double the size of that before a
> chapter line. No skip is needed after the part line as it is nearly
> always followed by a chapter line with its own preceding skip. The
> attachment 'increased-spacing-only.png' shows the formatting I
> settled with.
I like it, thanks!
> I also revised the part lines on the short contents page not to
> indent the line. See screen shots.
Great, thanks again.
Werner