Jerud Either great minds or we’re just the crazy ones trying to change our CSS in ways we shouldn’t be!
To be honest, I haven’t played around much with CSS since I asked that question. I never did find out what controls the color/style of the collapsed groupings. I just decided to live with it. It is strange that it doesn’t happen to all group headers. For me, GB tag headers don’t go dim, but I have changed my tag styling to blue. Maybe that is a clue that there isn’t a CSS style for the headers themselves, but for what is in the headers? So that is why Headings and Projects aren’t that light gray color?
I don’t use email in Legend, so I can’t help you there. I’m not bothered by the lack of contrast for the "new item:, breadcrumbs and tally box, so I’ve never investigated. And I’ve played around with some of the elements you list (as well as others) and some don’t seem to make any difference, at least not on the what I’m showing on my screen.
I’m hoping @Jay will someday make a list of all the various elements and what they do. Making it a visual chart with pointers to an actual Legend Pane would be most helpful! Or maybe other people have used CSS enough to discover which elements control what and can answer our questions!