[plt-scheme] MrEd: default alignment of frame%

The MrEd 202.x documentation for frame% (section 3.18) appears to say
that its default alignment is '(left top).  However, MrEd 202.5 seems
to contradict this:

  > (send (make-object frame% "foo") get-alignment)
  center
  top

Is this a bug in MrEd or the documentation?  Or neither?

--dougo at ccs.neu.edu