Created Unassigned: can I request a feature to ignore the TypeConvertor? [25583]

I have a class , for support a Window Form Designer, I define a custom TypeConvertor:
and also I need to implement a web deisigner, but JsonConvert will call the TypeConvertor to get the string return by the TypeConvertor, it's not what I want.

I googled and found others also meet this issue.

so, can you support to ignore the TypeConvertor?