Feature request: Book width

[BlackBeltBob]

Hi! I really like this project. It would be fun if you could add the number of pages of the book, and it would scale the width beyond a certain number of pages to make big books thicker on the shelf. Minimal thickness is, say 35px, but everything above 300 pages increases the thickness by some amount (1px per 10 pages, with a max of 30px)

[petargyurov]

I like this idea! I was originally going to add random variation in width, but using the number of pages to drive that sounds better. Will give it a go, thanks for the suggestion.