Just following up on this comment by @danburzo

Just to make sure you're not doing too much work upfront: if the changes are related to TypeScript, please be aware that culori is intentionally a JavaScript, not a TypeScript, project. (One TypeScripty thing we can do in this repository is maintain a t.ds typedef file, if that is helpful.)

Yes please! That would be very helpful and make the library much easier to use via IntelliSense.