With so many OS options (iOS, macOS Mojave day/night), the interface of Contacts changes. Being a graphic designer and photographer, I like keeping consistency. Ideally I would like to post a png portrait of my friends and their background would change based on the UI. However, I've tried on High Sierra and the background is white by default. One user managed to do this: https://www.reddit.com/r/apple/comments/8uy23w/iphone_x_users_use_memoji_as_contact_photos/ Do you have other alternatives for a more aesthetic UI on macOS/iOS Messages & Contacts?