To test polygon texture packing,
I opened 'spineboy' example, Select 'Texture Packer...' Menu,
and change Output-Packing option to 'Polygons',
and start packing.

But when I opened the output .atlas file by text editor,
there were only trivial rect based atlas informations.
No any polygon information are in the texts.

The version setting is newest, 3.8.75.
Is there any texture packing options or other settings to packet texture atlas as Polygon?
Or the polygon texture atlas functions are not prepared yet?