On Sun, 10 Feb 2019 09:22:37 -0500
Felix Miata <mrmazda@...> wrote:

> Dr. Nikolaus Klepp composed on 2019-02-10 08:42 (UTC+0100):

> > It affects all TDE applications. 
> > Firefox is also affected (see below).
> > geany and libreoffice are OK.
> > gimp 2.10 is OK (besides the fact that some genius broke the layers tab).
> 
> This is backwards from what I expect, though my expectations are limited by lack of familiarity
> with apps above mentioned and lyx. Most of my installations are lean, so no Gimp or LO. This box
> has Gimp 2.8 and LO 6.04. LO I use too little to know what to expect. Gimp's main menu bar text
> matches the OS. In the rest of Gimp, everything is tiny enough to cause headache and backache if
> used longer than very briefly.

For what it's worth, LibreOffice is GTK3, GIMP is GTK2.  Geany can be built with
either.  Lyx appears to be QT5.  So it looks like it's QT that's acting broken.  In the
case of Lyx/QT5, the problem may be an unsuitable default theme rather than a
resolution problem, in which case qt5ct may be able to fix it for you.

E. Liddell