here all colour are grouped based on the multiply shadow u will have on certain times of day or environment these are pair of light and dark shades for skin tones to be used in multiply
the pairs are as follows
1.indoor
2.golden hour
3 moonlight
4 forest
5 cool overcast
6 candle or fire
7 dusk
8 snow
all pairs are to be used as light and darker shadow light at suitable opacity