I know you were asking the GP, but that matches AP style: https://blog.ap.org/announcements/why-we-will-lowercase-white https://blog.ap.org/announcements/why-we

I know you were asking the GP, but that matches AP style: https://blog.ap.org/announcements/why-we-will-lowercase-white https://blog.ap.org/announcements/why-we-will-lowercase-whit... And The Atlantic wrote an interesting article on capital-Black, lowercase-white in 2020, when Blackness was particulary under the microscope as BLM took root: https://www.theatlantic.com/ideas/archive/2020/06/time-to-capitalize-blackand-white/613159/ https://www.theatlantic.com/ideas/archive/2020/06/time-to-ca...