Are there more pragmatic solutions, rather than doing a lot of work to create a new plugin?



==== just set an initial &guifont value ====

ALL of my machines are currently GTK+2.  I think the only reason my existing code isn't working, on
my work laptop, is because an initial guifont setting isn't set.



==== switch between a locally-specified list of fonts ====

    http://www.vim.org/scripts/script.php?script_id=202

^^ That plugin will switch between a hard-coded list of fonts.

The thing is, this hard-coded list could be specified locally, not in my
https://github.com/DeeNewcum/dotfiles.  This avoids problems with GTK2/non-GTK2 compatibility.


Downside:  It requires some up-front setup.


Upside:  The up-front setup is only required ONCE per machine.