Tree-sitter doc question

[Ergus]

Hi list:

Just a quick question. I see that the tree-sitter changes are already on
master, but I don't find any documentation. Please could you point me
where is it or how to use it?

I don't know how to do very basic things like:

1) How to check if it is enabled.

2) One enabled (which I think I managed) are the colors in the text from
cc-mode or tree-sitter?

3) What are the features available? May I disable cc-mode and rely on a
pure tree-sitter experience only?

+) Any other recommendation/comment???

Best and thanks in advance,
Ergus