What are the new interior designs in the Book design list?

Five new looks joined the original five, each tuned for a kind of book: Storyteller (warm classic serif with drop caps — commercial fiction), Scholar (clean humanist headings and navy structure — serious non-fiction), Romance (high-contrast elegant serifs with soft rose ornaments), Noir (stark condensed headings with a crimson edge — thrillers and crime), and Ming (built for Chinese/CJK books: Song/Ming typefaces, wide line spacing, two-character indents). Open your book, find the "Book design" card on the right, and click any design to apply it — the mini previews show each one's real typography, and your next export uses it immediately. If none is exactly right, the "Custom" option lets you pick your own fonts and sizes.