Comment # 4 on bug 1204021 from Luciano Santos

OK. By any chance, did you test those applications under another environment
aside from Gnome? I'm gonna prepare some VMs, is it possible for me to get one
of those GOG installers?.

Being honest though, at first sight, I don't think there's much we can make to
fix such issues because some of them are in the toolkit itself, in this case
seems to be PyQt (e.g. for a long time Calibre and other PyQt apps had a
tooltip issue where it was unreadable because the color of the font was too
close with the color of the tooltip's background), but let's not rush to
conclusions just yet.