--- a/ui/gtk/container.h Fri May 30 17:55:57 2025 +0200 +++ b/ui/gtk/container.h Tue Jun 03 20:13:30 2025 +0200 @@ -122,6 +122,8 @@ int spacing; int columnspacing; int rowspacing; + ui_callback onchange; + void *onchangedata; } UiGtkTabView;