--- a/ui/gtk/headerbar.c Sun Oct 12 08:07:27 2025 +0200 +++ b/ui/gtk/headerbar.c Sun Oct 12 08:30:29 2025 +0200 @@ -179,7 +179,7 @@ GtkWidget *button = gtk_toggle_button_new(); ui_set_widget_groups(obj->ctx, button, item->args.groups); WIDGET_ADD_CSS_CLASS(button, "flat"); - ui_setup_togglebutton(obj, button, item->args.label, item->args.icon, NULL/*tooltip*/, item->args.varname, NULL, item->args.onchange, item->args.onchangedata, 0); + ui_setup_togglebutton(obj, button, item->args.label, item->args.icon, item->args.tooltip, item->args.varname, NULL, item->args.onchange, item->args.onchangedata, 0); headerbar_add(headerbar, box, button, pos); }