Bug#841460: Fwd: Re: mate-polkit: gtk3+ errors still persist in .xsession-errors. Package: mate-polkit

[Vlad Orlov]

Oh, forgot about one more dir to look in.

As described in GTK+ docs at [1], there might be gtk.css
in ~/.config/gtk-3.0/ dir ($XDG_CONFIG_HOME is ~/.config).

[1] 
https://developer.gnome.org/gtk3/stable/GtkCssProvider.html#GtkCssProvider.description