I am looking for a children’s book that I remember, featuring anthropomorphic oil pastels or chalks as characters, set in a cafe or restaurant where they spent time. It was somewhere between a “picture book” and a “chapter book” in terms of length and balance of illustrations vs. text — some pictures but mostly text, I think. In fact, I wouldn’t swear that it was intended for children, but it was appropriate and comprehensible to an elementary school student. The tone was somewhat serious and melancholic, with bohemian themes. The cafe may have closed or changed hands, or a character may have stopped coming or left town. It would have been published before 2002.