I may have but then halos have been abandoned in pharo at least functionality wise , I have not seen any improvement to them from when I started using Squeak 2 years ago and if I remember there were once a time you had to enable them in pharo settings.��Also both a gui builder for squeak and another for pharo have been abandonware .
So it looks pharo is not doing well on GUI front especially when it has to compete with gui designers in visual basic, visual studio, QT, GTK and many more.��