Custom Types / Interpritations

[tryoxiss]

You say in what I believe to be the most recent version, that if no $type is set or it does not match one in the spec it should be ignored. If it dosent exist then thats fine, but it would be useful--borderline necesarly for .tokens.json to be a meaningful format--to define custom types. Especially since you explictly mention it being simillar to Java or Typesscript where custom types are a deeply core feature.

Maybe a syntax for defining them is too much, or maybe that would work (I don't fully know the goals or state of the project), but some way to allow for non-spec types while still being correct would be useful, such a "$type": "some-extention:color/hsl" for example).

Some examples of useful types which may not justify being in the spec but would be useful:

• weight (e.g., for fonts)
• radius (e.g., for borders, etc)
• animations ( a composite type of all animation traits)