Who said "red tiles, green trees, blue sea and sky"

Kang Youwei spent his later years in Qingdao from 1923 to 1927. Mr. Kang has a special liking for Qingdao. He has two famous comments about Qingdao: "Green mountains and green trees, blue sea and blue sky, never cold, easy to drive and boat, No. 1 in China", "Red tiles, green trees, blue sea" "Blue sky" is the 8 words that Qingdao people themselves summed up to summarize the whole city of Qingdao, which has now become the slogan of Qingdao's city brand.

As for "which newspaper first appeared in", I'm sorry, I don't know.