I've taken control of a project recently, and I see a workflow I've not used before.
The original developer would create content types on his dev machine; use Features to export the content type's code, and upload that as a module (with related functionality) to the production server. Enabling it, the content type is created.
Now that the content type is created, I'd like to add / adjust / delete field configurations. What's the correct workflow to work with the content type from that point? Once the content type is created, is it part of the db as if I had created it normally through the UI? Can I safely delete the Feature generated content type code? Can I manage fields through the UI, or would I have to fiddle with the Feature generated code?