One of my tasks of preparing the public beta of Royal Server was creating the offline and online help for Royal Server. Now, this is not exactly a beloved topic to be honest ... ;)
I evaluated HelpNDoc for this purpose: it seems, it has the main features I need (generate .chm and html help files), has a modern UI and I was also testing their support, which was helpful and reacted fast enough.
It sounds pedantic, but I want to display my headings followed by a coloured <hr> like this:
Now, the standard Horizontal Line they offer is by default black and cannot be changed.
What you can do though, is create a little html snippet, that is doing the trick:
This works like charm - though, not in the designer, only in the generated .chm/.html output:
Bottom line is that you can enhance your help files with HTML, which offers you a whole new world in terms of layout and flexibility. But: be aware, that there is no WYSIWYG editor to immediately verify the results.