Re: incomplete header-line with 3d boxes and prop fonts

[Richard Stallman]

    But the result (in ses-mode) isn't pleasing ... the cell contents gets
    more and more misaligned with the header line.  I tracked this to a
    problem with the calculation of the size of a :box'ed stretch glyph.

If the bug in ses.el is obvious, can you fix it?  If not, would you
like the maintainer of ses.el to fix it?  I have cc'd him.