I made it with PS. I was looking for words from the beginning. First, I looked for small picture elements in words and pictures. At the same time, open the text element A to create a new picture B in PS and select the background color; Then use the magic wand to select the word selection area to be added in A, then copy the selection area into the newly-built picture B, select the painting tool in the picture B, and then select the painting color to paint; This effect will come out.