[<var>&lt;BitmapAttribute&gt;</var>...] [DENSITY <var>&lt;Density.n&gt;</var>]
  ...
END
</pre>
<ul>
<li>
<tt>BPP</tt> must be one of 1, 2, 4, 5, 8, or 16 (5 means 4bpp/16 colors;
compare to <tt>BITMAPFAMILYSPECIAL</tt> below).
</li><li>
<tt>DENSITY</tt> must be 1 or 72 (single density, which is the default),
108 (one and a half), or 2 or 144 (double density).  (The values 1 and 2 are
supported for legacy reasons.) Generally a bitmap family must contain at least
one single-density member.
</li><li>
<tt>DENS