Currently we always fell in the case where we interpolate a quaternion, so we just deal with orientations fathers than real rotations with multiple spins, I'll see how to address this... for keyframe animations quaternion is usually fine but, but in this case keeping an axis angle representation would be better.

in mjs-volume and in the blog post and examples

evaluate having our online converter...

currently we pass .foo:hover but we just want to pass foo... if there is a hover & non-hover version, the backend should figure it while walking through all the styles

this assume that the config of the glTF converter is clean enough to be communicated...