Makes a copy of the specified #GtkRcStyle. This function will correctly copy an RC style that is a member of a class derived from #GtkRcStyle.
Deprecated: Use #GtkCssProvider instead.
Return: the resulting #GtkRcStyle
See Implementation
Makes a copy of the specified #GtkRcStyle. This function will correctly copy an RC style that is a member of a class derived from #GtkRcStyle.