WhatsApp is adding new choices for customizing your chats, with both preset themes and mix-and-match colors for backgrounds ...

Paper now includes a circular color mixer that lets you tap to pick a color (using RGB sliders, if you'd like), then swipe in a circle clockwise to mix colors and counter-clockwise to unmix.

WhatsApp is adding new choices for customizing your chats, with both preset themes and mix-and-match colors for backgrounds and chat bubbles, as well as a selection of 30 new wallpapers.