Gtk.IconSource.prototype.get_pixbuf

function get_pixbuf():GdkPixbuf.Pixbuf {
    // Gjs wrapper for gtk_icon_source_get_pixbuf()
}

Retrieves the source pixbuf, or null if none is set. In addition, if a filename source is in use, this function in some cases will return the pixbuf from loaded from the filename. This is, for example, true for the GtkIconSource passed to the GtkStyle::render_icon() virtual function. The reference count on the pixbuf is not incremented.