For the package GeoGebra 5, the text of the menu bar looks bad, with a strange (and unwanted) font.
This is the normal, good look of the menus of other programs:
This behavior is new. It's happening since around one week ago. Before this issue, I was tired by a poor appearance of my desktop: it looked with an old-fashion; almost all the fonts of the desktop looked no so well.
So, I followed this suggestion:
https://forum.manjaro.org/t/better-font-settings-in-easy-way-xfce-and-gnome/24319
However, I didn't make the step for Qt configuration. My system works with Qt4. Maybe this is the reason for the trouble. Today, I tried with the Qt4 configuration, font substitution. However, I don't know how to manage rightly this setting. I guess that the shown font is Abydos (it appears in the Qt4 font setting window, substitution area; it's exactly the first item in my fonts list).
I have tried too:
- changing some options in Setting tools Appearance and Windows Manager
- uninstalling (https://askubuntu.com/questions/151941/how-can-you-completely-remove-a-package, post of user2777677), deleting the geogebra and GeoGebra folders of my .config directory, and reinstalling GeoGebra 5
without fixing the issue.
My system: Debian 9, Xfce, 64 bits
This questions could be similar to my case:
