In order to use required settings for shapes, we should create Element templates for each Space type.
When Templates are ready with all required coloring and line-styling we need to prepare our Icons for those buttons. This is not required, because Buttons can be created using default Icons and user still will be able to see the icon label when he will hover over it with mouse cursor.
In below instruction you will find way of how to prepare new icons for new custom buttons.
Now when *.dgnlib file is prepared with required icons we can continue on next part where we will create Custom Icon group and buttons.
Now test new Buttons and verify