highlights, streaks
Si vous êtes son ami, demandez-lui de renoncer à ses mèches grises.
If you're his friend, ask him to get rid of his gray streaks.
— Star Trek: The Next Generation - All Good Things... (2014)
Cela dit, pourquoi ces mèches dans vos cheveux ?
That said, why do you have those streaks in your hair?
Je ferai des mèches sur le devant.
I’ll put highlights in the front.
— Un Soleil (2019)
Ils restent les mèches à faire.
The highlights are still left to do.
Tu viens pour les mèches ?
Are you here for the highlights?
— Volver (2006)