True tone display iPad Pro Apple did great job by adding true tone display support from iPad Pro, iPhone 8, iPhone 8 Plus. True tone display uses device ambient light sensors and change screen hue and colour intensity according to surrounding light temperature. I mean if you are sitting under warm light (yellow tint) then your iPad Pro or iPhone 8/8 Plus display shows warm colour. If you are sitting under daylight (pure white) then your iPad Pro, iPhone 8/8 Plus display shows colour accordingly.