Apple has released an update to its universal iBooks app adding several new UI features and enhancements. iBooks 1.5 adds a nighttime reading theme for reading books in the dark as well as a new full-screen reading view. The update also adds several new fonts including Athelas, Charter, Iowan and Seravek and a new redesigned annotation palette making it easier to choose highlighting colours. With the latest version Apple is now including classic covers for public domain books as well rather than the generic title covers that had previously been displayed. iBooks 1.5 requires iOS 4.2 or later and is available from the App Store as a free download.