I was making my own tool to convert SWF shapes to SVG based on your implementation:
However, for some paths, ShapeExporterBase doesn't work correctly, or at least the result
doesn't appear the same as in the Flash Player. The issue is described in more details on
my StackOverflow question at https://stackoverflow.com/questions/60572635,
images included. The result
you see from Inkscape appears exactly the same in the app, in shape preview. I'll attach
the file in question here.
I'm well aware this probably won't ever be fixed, I just wanted to inform you of it. I
tried other tools/libraries that can convert SWF shapes to SVG and they all seem to have
the exact same issue.