coloring

coloring (US) noun
or British colouring /ˈkʌlərɪŋ/
plural colorings
coloring (US)
noun
or British colouring /ˈkʌlərɪŋ/
plural colorings
Britannica Dictionary definition of COLORING
1 
[noncount] : the act of adding colors to something (such as a picture in a coloring book)
2 
: something that produces color
[noncount]
[count]
3 
[noncount]
a  : the color of a person's skin and hair
b  : the color of an animal or plant
4 
[noncount] : the way color is used