How to create sql DDL for SQLite

I think it is create to be able to create entities in the ERD with SQLite type, though how to I utilize that when generating SQL DDL?

The product is not clearly stating the SQL DDL being generated is MS-SQL For example the command sys.sp_addextendedproperty is generated and this is solely MS-SQL and not useable by other SQL database systems.

My question is how can I have the product create SQLite SQL if the entity is using SQLite types.