What are the key characteristics of good comic background music?

Effective comic background music should enhance the mood and pacing of the comic without distracting from the visuals or dialogue. It often utilizes dynamic shifts, sound effects integrated with the music, and a style that complements the comic's genre (e.g., upbeat and quirky for comedy, suspenseful and dramatic for action). Subtlety is key; it should support, not dominate, the storytelling.