I have a problem with gtk+ version 3.22.11 on a raspberry pi running raspbian.
Not sure if this is the right place so please tell me if I have to ask somewhere else.
I build a small test GUI with glade (see debug.glade) and a python demo (debug.py) using a css (test.css) to change the fontsize of a label.
This works fine on my PC running Ubuntu and Gtk version version 3.18.9 (see PC.png) but the font size change is ignored on my RPI (see RPI.png)
The question is: is this a GTK issue or a raspbian issue ?
Thanks for your help,