I don’t know when category slug was introduced but I just discovered it today and I like it!
Would it be possible to change it so the category slug is used on menus, instead of the category name? This way we could have a longer name that is used on category lists and so on, while having a nice short name for menus.
Meanwhile and on a related note I noticed that the long names are truncated with … to make it fit on one line, which is nice, but on mobile it is still juuust a little bit too long to display the new posts number next to it and have it still be on one line. Wraps to two lines which then looks ugly.