The ::style-set signal is emitted when a new style has been set
on a widget. Note that style-modifying functions like
gtk_widget_modify_base() also cause this signal to be emitted.
Note that this signal is emitted for changes to the deprecated
#GtkStyle. To track changes to the #GtkStyleContext associated
with a widget, use the #GtkWidget::style-updated signal.
The ::style-set signal is emitted when a new style has been set on a widget. Note that style-modifying functions like gtk_widget_modify_base() also cause this signal to be emitted.
Note that this signal is emitted for changes to the deprecated #GtkStyle. To track changes to the #GtkStyleContext associated with a widget, use the #GtkWidget::style-updated signal.