let table =
GPack.table
~rows:1 ~columns:3 ~homogeneous:false ~row_spacings:5 ~col_spacings:5
- ~border_width:5 ~packing:vbox#(pack () in
+ ~border_width:5 ~packing:vbox#add () in
let button_t1 =
GButton.toggle_button ~label:"activate t1 fonts"
~packing:(table#attach ~left:0 ~top:0) () in