When did Tian Yingzhang say he would practice running script?

Tian Yingzhang said that in 2022, calligraphy, unlike painting, is a single-line plastic art, and it is impossible to keep painting lasting, so we can only do it in ink, so we use the change of ink color to create the lasting appeal of calligraphy. The ink is divided into five colors: thick and light, dry and wet. Calligraphers will give full play to the material characteristics of ink when creating works, making the charm of calligraphy more distinct.