Color grading reminds me of the old Othello board game tagline: "A minute to learn, a lifetime to master."
I'll quote myself from the post you linked to:
[Walter Soyka] "If you're interested in color correction, look up the books by Steve Hullfish & Jamie Fowler, and Alexis Van Hurkman."
These authors are wonderful teachers, and there's a lot to learn from their books.
Walter Soyka
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