Why is the little red book black and white?

The little red book is painted in black and white. Little Red Book is a lifestyle platform and the entrance of consumption decision. The founders are Mao and Qu Fang. By July, 2065438+2009, the number of users of Xiaohongshu had exceeded 300 million. As of June 20 19 and 10, the number of monthly active users of Xiaohongshu has exceeded 1 100 million, among which 70% of the new users are post-90s.