Shannon Liao, writing for The Verge;
Facebook is conducting a test right now to bring the rainbow to you. Currently, only a select few users can see the test, and it appears to only work on mobile. Colorful status updates first came to Facebook’s Android app last December, and Facebook recently adopted the feature on WhatsApp.
Not sure how to react to this news, except that Facebook is starting to look like the old Friendster or MySpace.