What are the foiling techniques?

Answer 1

To develop a character foil, many parallels are drawn between the character and his/her foil. These mostly include similarities. However, to establish the foil, the characters are contrasted in a more fundamental element of character, in order to more clearly emphasise this character trait in the primary character.

Answer 2

Foiling techniques in hair coloring involve using pieces of aluminum foil to separate and isolate sections of hair while applying color. Common foiling techniques include traditional highlights, lowlights, balayage, and ombre. These techniques allow for precision placement of color and can create a variety of looks and effects in the hair.