[Pharo-users] How to use Spec 2.0 with GTK in Pharo 9.

[jbn126859530 . 7]

Hi.


I'm learning Spec 2.0 with the help of the book "Building user interface with 
Spec 2.0". In section 2.17 of the book, the authors make a subclass of 
SpGtkConfiguration. However, no such class exists, only a 
SpMorphicConfiguration. Moreover, if I do something like: "app useBackend: 
#Gtk", I get a NotFound error. Again, "app useBackend: #Morphic" work as 
intended. As Pharo 9 annonced the availability of a GTK backend, I would like 
to know how to access it.


Thanks.


tau.