Here is the transcription of the talk, which not only explains the process of development and imbibition printing, but also notes which color timing corrections are available at which level...
Another example: in the 1967 live-action musical The Happiest Millionaire, the characters wear seemingly light blue sweaters. In real life, they were neutral grey. (Though several were later dyed in colors for the Passamaquoddy sailors in Pete's Dragon.)
I seem to remember that in the Disney animation dept., a lot of research was done to map out how colors would show up on film, especially in this period where Snow White was beginning to take on color. I recall something about wall-charts after lots of tests.
Conclusion: there is more to Technicolor than meets the eye!