Even if it is purple sometimes, there have been blue cases. The dynamic dotted box displayed around the face recognition photo after Health Treasure logs in can be called "Marquee". The color of the "Marquee" changes randomly every day to prevent screenshots and counterfeiting and protect the safety of personal information. Color has nothing to do with personal health related to epidemic prevention. It doesn't matter as long as the words "nothing unusual" appear. The status of "health treasure" is still based on the text below the photo, which is divided into three types, namely "centralized observation (red)", "home observation (yellow)" and "no abnormality (green)"