Based on schema 2020-12:<div dir="auto"><br></div><div dir="auto"><div><a href="https://github.com/KhronosGroup/glTF/tree/main/specification/2.0/schema">https://github.com/KhronosGroup/glTF/tree/main/specification/2.0/schema</a></div><br></div><div dir="auto">Sorry for any confusion.   I should have done research before blabbing.</div><div dir="auto"><br></div><div dir="auto">John</div><div dir="auto"><br></div>