yep, we need that. It will make the API consistent.
Normal sprites (quads) and Mesh sprites (polygons), both of them, are using polygons internally.
So this new 9-slice behavior keeps using polygons internally. It just creates a 9-quad polygon (a 18-triangle polygon). So internally nothing changes.
yep. probably I'll need to update
setNormalizedPosition as well as @almax27 suggested.
correct. v3.x doesn't have a true ECS. And it won't be possible to support all the Creator features in c++. So only a subset of its features will be supported.
yep. we postponed the v4.0 development to focus on v3.x. But we started working again on v4.0... no code yet... just requirement gathering.
correct. For the moment I'm only supporting exporting to C++. Once it is finished I'll try to support csb files as well.