The Saem Triple Pot Concealer: what are the differences between all the shades?

There seems to be a wider variety of shades than just the well-known Correct Beige and Contour Beige, including ones like Dark Up Beige and Pink Beige, which aren’t as commonly mentioned.

It raises a few questions for anyone who’s explored these:

• What skin concerns does each shade work best for (e.g., dark circles, redness, brightening)?
• Are there noticeable differences in undertone or coverage between them? Are they suitable for olive skin?
• Have any of the less "popular" shades (like Dark Up Beige or Pink Beige) worked better for certain skin tones or issues?

Would love to hear from anyone who’s tried multiple shades or has insight into how they compare.