v3.10.0

• True cover aspect ratio: an optional setting to show covers at their real shape instead of a uniform rectangle, on the shelf and the hero card. Turn it on in Settings > Cover display
• Cover browser: a new Cover tab in the book menu to pick a book's cover from your device, or search online (Google Books, Open Library, Apple Books, Hardcover, Wikidata)
• Instant book close: leaving a book now returns straight to the shelf instead of rebuilding it, with an optional cover-opening animation (both can be toggled in Settings)
• Much faster startup on large libraries and SD-card storage (#262)
• Smoother first page-turn on colour e-ink screens (#247)
• Fixed: Hardcover community ratings no longer disappear from the hero when the interactive rating region is turned off (#264)
• Fixed: the selection outline could linger on the wrong book after turning the page (#265)