Color transitions? Atoko's library?

Hello,

First of all I want to say that I know that alot of threads with this topic exists, but I haven’t found any that works to date. I basically want  a library for doing transitions between colors. The thing is, there is a few of these for example “Atoko’s”, but I don’t know where to find it. The developer link to it just redirects me to code.coronalabs.com. Could one nice person show me where to download it, please?

Thanks in advanced!