Strange colors in some aplications

[GaaSantAna]

Hello everybody!
Since the last update, some applications don’t have a “dark mode” on Gnome 42.1 (I’m using X11).
For example VLC and VirtualBox. The buttons kind of stay in dark mode, but the fonts and the background color not.
Just like this:

and

Anybody has some tip?
Thanks!

[bogdancovaciu]

Qt applications are not influenced by the Gnome theme, nor dark mode. You have to check if you are using Kvantum or Qt5 Settings aka qt5ct and set the proper “theme” from there.

[GaaSantAna]

Thanks!
I opened “Qt5 settings” and the theme selected was “Adwaita”, changed to “Adwaita-Dark” and solved!
I don’t know when this changed, but now I learned how to fix.