Done. Caveats:
2 extra vector allocations at the start (should be completely negligible)

1. changed public API of Replacer::new()
2. There's probably a more efficient way of achieving what replace does
3. No colors when there are several patterns.
4. The regex flags are applied to all patterns

I'll be looking at these after I get this pending release out. Just wanted to give a heads up that I'm not ignoring all of these

What's left for the release? The release issue tracker #203 is as complete as it gets.

Can I help with anything?

This will be a hacky solution up until the new modular architecture is created and merged. I don't know if it's worth it to release it for 1.1 since the API for it will likely change

This doesn't make much sense after #282