Bump colored crate for true color support

[orhun]

I realized that colored crate is outdated in fern and checked it's changelog to see if there's any breaking changes. Apparently there's not an outstanding change expect the true color support which is added in the latest (2.0.0) release.

So this PR bumps the version of colored crate to support true colors. (115710b)
I also updated the pretty-colored example for demonstrating the use of true colors. (e419505)

[fvacek]

Any progress?

[orhun]

Any progress?

I released a fork of fern on crates.io since the maintainer was quiet for the past 5 months: https://crates.io/crates/fern_colored

[daboross]

My apologies - I must have missed this pull request.

As fern re-exports types from colored, I'd prefer this upgrade is done through an additional colored-2 feature, rather than an in-place upgrade. This would allow this upgrade to a minor version, rather than a major version release of fern. I can do that change; though.

[daboross]

The fork does seem justified, though :) . I've not been the most active fern maintainer, especially the past year or two. Hoping I can get this and a few other PRs actually merged and clean things up a bit, but it has been a while. That and evaluate things like #67, which may be worthwhile.

With this, #66 and #65, maybe it would be worthwhile to just upgrade all dependencies and make that a new major release of fern.... Unsure. Seems like we should be able to do without it, but the codebase will just keep getting more convoluted, and log 0.5 is coming much, much slower than I expected it to.

[fvacek]

I suggest to make more simple steps. For output coloring:

1. create colored-2 feature to give user opportunity to use latest version of log package
2. Then we can start to think about owo coloring, if it worth to be implemented or not.

The syslog issues might be solved in separate as not related to coloring

[daboross]

I'm going to close this in favor of future owo-colors support (#67), for reasons listed above.