Is there any documentation on Nautilus anywhere?

I was trying to get it to create getters and setters but I don't see
if it does that. Also, there are these tantalizing letters on the side
(S,

B,

D,

I,

C)

and sometimes a yellow

band appears on the
right--which I guess is a warning about length,

but what are the
numbers?

Also, the category pane is now the package pane, and given my
confusion about the relationship between those, it'd be good to know
how Nautilus is different.

===Blake===