color lib

[Manu via Digitalmars-d]

I've done another pass incorporating prior feedback, mostly focusing
on documentation.

http://dtest.thecybershadow.net/artifact/website-b6e2e44dd40dd7c70eb45829c02060b99ae3937b-57272ccdf902fa3f0c050d522129f2be/web/library-prerelease/std/experimental/color.html

Can interested parties please give it another once-over and add
further comments?
How can I get this to a point where people would like to see it in phobos?

Repo: https://github.com/TurkeyMan/color
PR: https://github.com/dlang/phobos/pull/2845