While trying to put our codebase on core3 rails, we faced unexpected exception that frustrated us.

The following types are strongly necessary for our application:

• System.Drawing.Design.ToolboxItem
• System.ComponentModel.Design.ComponentDesigner

But we catch this exception:
System.NotImplementedException: 'This method/object is not implemented by design.'

Could you confirm that these types are in your plan and will be implemented in release v3.0?

We are also waiting for the following types from the System.Design lib:

• System.ComponentModel.Design.UndoEngine
• System.ComponentModel.Design.DesignSurface
• System.ComponentModel.Design.InheritanceService
• System.ComponentModel.Design.DesignerActionMethodItem
• System.ComponentModel.Design.DesignerActionPropertyItem

Can we expect to see all the missed types in the final release?