MillHelp is a simple addon that displays which pigments will be produced when a herb is milled on the herb's tooltip and the herbs needed to make an ink on the ink's tooltips.
I always felt that only showing what herbs a pigment needs on the pigment tooltip was a poor design choice for Blizzard. Since beta I've always been looking stuff up on wowhead or switching to my alchemist when somebody asks me what pigments some random herb will make.
I've been lazy and am just now making a forum thread for my project.
Localizations would be appreciated, since currently the addon will disable itself in unsupported locales (which is pretty much just the Asian side of things, sorry!)