每個群組有三種顏色,一個底色,另外兩個是陰影顏色 對,乘法圖層中可以先放一個陰影,不透明度約 20,第二個陰影放成約 50 不透明度 

group each have 3 colours one base and other 2 are pair of shadow colours in multiply layer here u can put 1st shadow at 20 opacity and 2nd shadow at like 50 opacity 
