After starting with a PolyMorph window & toolbar, I've now added a Glamour and Spec one. Code: http://www.smalltalkhub.com/mc/StephanEggermont/MorphicDraw/main Documentation: https://github.com/StephanEggermont/MorphicDraw I find it difficult to explain the choices for event handling. I'm using both handleListenEvent: and mouseDown: and on:send:to: and haven't even started using announcements. What am I supposed to be using when, and what is supposed to be replaced in Bloc? Stephan