When you export your file there should be a small range of styles you can pick at the top of the list. At the moment these appear to be the core styles plus 'Jerion', which I think you may already have used.

This is FT3+ by the way. FT3 doesn't have these options.

I think there might be a way to add to that list, but I'm not entirely sure how it's done.

It's possible this might be considered in developments in the future if there is more demand for it, but in the meantime you can very easily convert any of the bitmap exports from CC3 to WEBP format in GIMP, which is free software you can get here.

Open the bitmap in GIMP and then go to Export as... in the File menu, and pick your export file type from the dropdown Select File Type, name it, and away you go.

Thanks Ralf :)

You are already using the same techniques that I would use on existing polys.

However, it is possible to 'square' a corner in an existing smooth polygon by adding a second node directly on top of an existing one. That's a little tricky to do, though.

A wise move - making separate copies to do anything experimental on.