[REQUEST] Make unlit vertex colors match in game rendering

[ConnorDY]

Current vertex colors are a good bit off from in game colors. It is especially worse depending on the area.

[ScoreUnder]

https://gltf-viewer.donmccurdy.com/

Seems like the GLTFs we generate look right under this viewer? (Flat shading issues aside, that's a separate thing to this issue AFAIK) So I'm not sure why other viewers (e.g. https://sandbox.babylonjs.com/ and Blender) display it so differently. Maybe there's some kind of ICC profile issue at play?

ed: or maybe we need the unlit extension? https://modelviewer.dev/examples/color.html#matching