as to utilize factory method for creating presenter, since instantiating presenters directly have been removed as of Pharo 13. ## References - https://github.com/pharo-project/pharo/blob/Pharo14/doc/How%20to%20migrate%20object%20inspections%20(Pharo12%20to%20Pharo13).md - https://thepharo.dev/2022/08/03/creating-a-new-visualization-in-roassal/
as to utilize factory method for creating presenter, since instantiating presenters directly have been removed as of Pharo 13.
References