"anchor/head" terminology not matching with "to/from" selection terminology

Are they different? I had to look into the source to understand that anchor/head are essentially the same as from/to so that I could understand what to do with an API.

It may be better to match the terminology, for developer experience, unless they are actually different. Are they?

No they are not. One of them will equal from, and one will equal to, but which one depends on the direction of the range. The docs mention this.

I see, Thanks! It is easy to miss or not get that detail. I know the docs are still expanding. This is probably good for the guide.