It is now possible to build custom user interface to reduce the number of tools, it is targeted to young users to reduce the cognitive charge of the GUI.
Feedback on object can be hidden at will, again to reduce the GUI noise for young users.
Change of size font
New script system
The new script system based on class prove to be very useful.
It offers a wide range of advantages: script arguments are defined by type, name and description are declared on the script class, state is hold in the class instance variable of the script, script computing is done in several methods. Script can modify the state and appearance of other object on the sketch.