...

 by adding the following code lines in the method handleNotificationEvent to update the border width or to add a double line border to the state, if the user changes the Is Initial or Is Final options.

Remove the Initial and Final State Icon from the palette in org.yakindu.sct.ui.editor/plugin.xml

by removing them from the list of Elements situated in the file org.yakindu.sct.ui.editor/plugin.xml.

...

Modify the SGraphValidator.

Modify the creation wizard

...

in org.yakindu.sct.ui.editor/src/org/yakindu/sct/ui/editor/factories/FactoryUtils.java

The creation wizard creates a new diagram which includes an Initial State and a Normal State. We should modify the creation wizard by modifying the method createStatechartModel (org.yakindu.sct.ui.editor/src/org/yakindu/sct/ui/editor/factories/FactoryUtils.java)

Clean the code 

Clean the

...

code where the old Initial and Final States are implemented (FinalStateFigure, InitialStateFigure, ...)

...

Clean the code.