I noticed that when you sort by any of the fields (subject, lines, etc) the triangle representing whether it's "smaller" first (i.e. triangle with the point up) vs "larger" first (i.e. triange with the point down) is backwards for all fields.
I think it refers to ascending and descending. When it points down and is sorted by subject, for example, your headers are descending, with special characters at the top and Z at the bottom (would that be correct?).
Yeah, that's the description, however, those arrows are backwards is all I'm saying. Take a look in say, Microsoft Outlook and sort by Subject etc.
It's just like when you use a < sign or > sign. Whatever is bigger or greater should be on the opposite side of the point. Someone once gave me a good description that you should think of it as a bird's beak pecking at the weaker or smaller one. That was for math, but it translates to this as well. If the point is up, then special characters should be first, then A and Z at the bottom.
Like I said earlier though, it's not a major issue. It's not like this breaks the program, but something to tweak when/if the next revision comes out.