--- a/ui/gtk/container.c Fri Oct 03 11:31:27 2025 +0200 +++ b/ui/gtk/container.c Fri Oct 03 11:44:08 2025 +0200 @@ -1062,6 +1062,7 @@ } GtkWidget *box = ui_gtk_vbox_new(args->spacing); + ui_set_name_and_style(box, args->name, args->style_class); ui_box_set_margin(box, args->margin); BOX_ADD_EXPAND(pbox, box);