The maximum height of a Menu (i.e. before the scroll arrows appear on the menu, due to too many MenuItems) is currently set to be the full height of the screen. This can look a little bit too huge, especially if your app doesn't have a Stage that's anywhere near that tall.

This edge case would look a little nicer if there was a smaller maximum height for Menus (half screen height?), or even if there was a property where the maximum height for a Menu could be directly specified.

For that matter, it would also be helpful if you could specific a maximum width for a MenuItem, too, since sometimes you don't have 100% control over the text that gets put into a MenuItem. It would be cool if it just truncated long text with an ellipsis like a Label does.