The new tree component is ideal for displaying menus that might be very long, but it is sometimes hard to tell on specific screen sizes whether there is more menu that can be scrolled into view.
It would be nice if there were a way of displaying an indicator at the bottom of the tree when it extends beyond the bounds of the current screen height, to give the user some feedback that there might be more to be seen.
Here is a quick sketch of what something like this might look like, by adding a small box with an indicator at the bottom of the tree..
With my testing, I have discovered that there are often cases where the screen size makes it look like everything in the tree is visible, when there is, in fact, more to be seen.