Does The Entertainer use a chromatic scale?

The Entertainer is a piano rag composed in 1902 by Scott Joplin. It is written in the key of C major, with a time signature of 2/4. The piece uses mostly diatonic notes, with the occasional use of chromatic notes such as the F♯ and G♯. The chromatic notes are used to add color and interest to the piece, and they also help to create a sense of movement.