Sketching the DrGeo circular toolbar.
More details: https://blog.drgeo.eu/2021/10/make-it-circular-and-contextual.html
The gray toolbar is the main one, the green ones are the sub-toolbars, and several can be open simultaneously. #CuisSmalltalk's Morph simple design is human understandable and it helps concentrating on the design task. Great tool.
Find another use for inject:into: message to construct a spiral elementary pattern. Fun with programming with @drgeo and @pharoproject