Seems that the default configuration of GtkAboutDialog decoration in Gtk4 is replaced by a GtkStackSwitcher in a GtkHeaderBar that breaks the common look style of application.
Is it possible to go back to GTK+3 styling, i.e. with buttons (“About”, “Credits”… “Close”) down of info area ?
With “common look style”, I just mean the style used along of other windows of my application. In fact, I don’t use header bars (GtkHeaderBar), but just only simple decorations (title & buttons).
So, in this case, writing a customized AboutDialog (maybe from GtkDialog…) should be the recommended ?