2D Spline Json exporter in krita

Working on a plugin for spine 2d. I am really frustrated, there is no proper good support for krita-spine. So Working on one. Not from scratch. On top of unofficial krita to spine plugin by spine 2d. Mainly for changing the root of a project. So that spine doesn’t create that default top-left root. Do you guys have any suggestions?

Atleast the root is in the middle now!! Better than top-left