Memoji

Memoji are large user-customizable emoji. They can also be animated in certain Apple devices with a TrueDepth camera.

History
In 2018, Memoji was introduced in iOS 12 in which animated Animoji could be customized to resemble the user or other characters on devices with TrueDepth cameras. In 2019, iOS 13 expanded static Memoji support to devices with an Apple A9 or later processor.

Apple customarily issues new emoji on, which is on July 17 of each year. On July 17, 2018, Apple's senior management changed their profile pictures to Memoji to promote the new feature.

WWDC 2020 was promoted using various Memoji characters in front of a MacBook that was sometimes decorated with WWDC stickers

in order to spread word to developers that WWDC was coming.