Hi guys what do we do with shout? Squeak introduced it directly in the system. Now I was thinking that what could be a solution is to have a default API/null pattern class that could be in the core and that when Shout gets loaded the shout class is used instead. Now we could add Shout to the TextEditor package but I would like to understand how we can do it without. And also it is interesting to see if one day we will need selector namespace or something like that to deal well with extensions. Stef in PharoCore-1.1 11367 Fails as CodeMorph#stylerClass is not initialized. And no *Styler* class exists on PharoCore.... To make test passes on Pharo I've written CodeMorph#defaultStylerClass ^ SHTextStylerST80 CodeMorph#stylerClass ^ stylerClass ifNil: [stylerClass := self defaultStylerClass]. the solution proposed by laurent only works when shout is loaded and this is not always the case.