GtkIconTheme: Small cleanup
GtkIconTheme: Small cleanup

Make the default symbolic colors a little more readable in the code.

davidgumberg/gtk,chergert/gtk,jessevdk/gtk,grubersjoe/adwaita,Lyude/gtk-,ahodesuka/gtk,davidgumberg/gtk,jadahl/gtk,Adamovskiy/gtk,jessevdk/gtk,Lyude/gtk-,davidgumberg/gtk,Lyude/gtk-,Adamovskiy/gtk,jessevdk/gtk,alexlarsson/gtk,grubersjoe/adwaita,grubersjoe/adwaita,chergert/gtk,ahodesuka/gtk,chergert/gtk,ahodesuka/gtk,jadahl/gtk,Lyude/gtk-,grubersjoe/adwaita,alexlarsson/gtk,ahodesuka/gtk,chergert/gtk,jigpu/gtk,Adamovskiy/gtk,ahodesuka/gtk,davidgumberg/gtk,jadahl/gtk,jigpu/gtk,jessevdk/gtk,ahodesuka/gtk,ahodesuka/gtk,Adamovskiy/gtk,jigpu/gtk,jessevdk/gtk,jigpu/gtk,jadahl/gtk,davidgumberg/gtk,alexlarsson/gtk,Adamovskiy/gtk,chergert/gtk,jessevdk/gtk,alexlarsson/gtk,chergert/gtk,grubersjoe/adwaita,jadahl/gtk,Lyude/gtk-,jigpu/gtk,davidgumberg/gtk,Lyude/gtk-,davidgumberg/gtk,chergert/gtk,jessevdk/gtk,Lyude/gtk-,jigpu/gtk,jadahl/gtk,jadahl/gtk,Lyude/gtk-,alexlarsson/gtk,Adamovskiy/gtk,jigpu/gtk,Adamovskiy/gtk,ahodesuka/gtk,alexlarsson/gtk,jadahl/gtk,jigpu/gtk,alexlarsson/gtk,grubersjoe/adwaita,alexlarsson/gtk,davidgumberg/gtk,chergert/gtk,Adamovskiy/gtk,grubersjoe/adwaita,grubersjoe/adwaita