* Fix a bug where color equality didn't take the alpha channel into account.
* Fix a bug with converting some RGB colors to HSL.
* Fix a parent selector resolution bug.
* Properly declare the arguments for `opacify()` and related functions.
* Add a missing dependency on the `stack_trace` package.
* Fix broken Windows archives.
* Emit colors using their original representation if possible.
* Emit colors without an original representation as names if possible.