nice one ghool, thanks.
But at the same time:
- imagining the color wheel is simple (if not look at a googled image and remember it)
- complementary color = color on the opposite side of the wheel
- saturation = how strong (pure) the color is
- basically there are 3-4 schemes that are used (complementary, split complementary, triad, tetrad(rarely used)), not much to learn.
Really, it takes 10 minutes at most to learn what that app can do.