Of all nine Skywalker movies THE LAST JEDI has the most use of the force theme. I believe it would have been better had Williams written another emotional melodic theme for this movie that he could have used in those scenes where he more or less overused the force theme. By the way something that also REVENGE OF THE SITH suffers from.
Episode 4 had Leia’s theme and Ben’s theme.
Episode 5 had Yoda’s theme and Han Solo and the Princess
Episode 6 had Luke and Leia
Episode 1 had Anakin’s theme
Episode 2 had Across the Stars
Episode 3 nothing (but they played Leia’s theme in the end credits)
Episode 7 had Rey’s Theme
Episode 8 had Rose’s Theme, but in a way it was just half a theme. There was something missing.
Episode 9 had two half themes: Friendship and Rebellion, but this score really was a mess, like the movie. Nothing made sense.