The title should help a user identify the current view. This
supersedes any title set by gtk_header_bar_set_title() or
gtk_header_bar_set_subtitle(). To achieve the same style as
the builtin title and subtitle, use the “title” and “subtitle”
style classes.
You should set the custom title to %NULL, for the header title
label to be visible again.
Sets a custom title for the #GtkHeaderBar.
The title should help a user identify the current view. This supersedes any title set by gtk_header_bar_set_title() or gtk_header_bar_set_subtitle(). To achieve the same style as the builtin title and subtitle, use the “title” and “subtitle” style classes.
You should set the custom title to %NULL, for the header title label to be visible again.