What does the book do with my pencils?

Every page uses them: pattern pages are colored from them (a different handful of pencils page after page, so the whole set is used), mystery pictures and photos snap to them, and the key names each color after your pencil, in your set's order. The editor offers "My pencils" as its first palette. Changing the set recolors the pages the studio colored and remakes mystery and photo pages; your own colors stay. The listing text says how many pencils the set has.