=#d:Msquare><TT>Msquare</TT></A>,
<A HREF=#d:Mcircle><TT>Mcircle</TT></A>, and
<A HREF=#d:Mdiamond><TT>Mdiamond</TT></A>
are simply an ordinary square, circle and
diamond with the diagonals style set.

<DT><A NAME=d:rounded></A><TT>rounded</TT>
  <DD>The rounded style causes the polygonal corners to be smoothed.
Note that this style also applies to record-based nodes. Indeed,
the <TT>Mrecord</TT> shape is simply shorthand for setting this style.
Also, prior to 26 April 2005, the rounded and filled styles we