I very glad to have debiandoc-sgml (which I have loved for years) playing quite nicely with psgml in emacs 24.5.1. This is in a recent upgrade to stretch:
Linux 4.9.0-9-amd64 #1 SMP Debian 4.9.168-1+deb9u3 (2019-06-16) x86_64 GNU/Linux I have no troule enlarging the text (or "page") font used by emacs -- using my .emacs file -- but the menu titles and drop-downs require me to use a magnifying glass due to my poor (and a bit old) vision. I believe the size of these screen artefacts (menu titles etc.) could be tweaked using X Resources. This instance of emacs is linked to GTK. I have not yet been able to find the names of the needed resources for my problem. Thank you -- "In our age there is no such thing as ‘keeping out of politics’. All issues are political issues, and politics itself is a mass of lies, evasions, folly, hatred, and schizophrenia." George Orwell "Politics and the English Language" (1946)