All versions since 0.6.0

0.6.0

46f321f Thanks @benhonda! - A hovered edge’s furl now leans toward the pointer: the fold runs deeper at the end of the edge the pointer is near and follows it up and down the edge, instead of sitting still.
a5b6d5b Thanks @benhonda! - Turning back in a single-page book now looks like turning forward. The previous page uncurls across the page you’re on, with the same curl and shadows at the same point in the turn, instead of sliding in flat from beside the book. The pointer holds the fold, and letting go past the middle of the page lands the turn. Hovering by the spine curls the first strip of it over, leaning toward the pointer like the edge furl. Nothing of a turn is drawn beside a single-page book any more, and a hard page there swings up to upright at the spine rather than over into the hidden half, so you can see it move for the whole turn. Its shadow there fades out from the cover’s edge instead of sweeping across the page as a slab with a hard edge. Two-page books look exactly as before.

FlipFrame.peek is gone: that cue is now the start of an ordinary turn. In a single-page book a turn back’s frames run forward (the previous page turning off itself), with that page on show as right and the current page as bottom; flipProgress still reports it as a turn back.

fd496d2 Thanks @benhonda! - flipTo now looks like you’re turning a clump of pages when it jumps more than one spread. The page on show still turns straight onto your target, but a few blank sheets (one per spread you skip, up to five) fan out from under it, curling at the corner, and close back up before it lands. They take their colour from your inner pages, not the cover, and you can set it with --opf-sheet-color. A cover closing over them brings blank pages along behind it. Nothing between the two spreads is drawn, and it’s still one turn to you: one flip event and one flipProgress from 0 to 1.

For custom renderers, each FlipFrame has a new sheets list describing those blank sheets (empty for an ordinary turn).

Also fixed: resizing the book or giving it new pages in the middle of a turn used to drop the turn but leave the book reporting flipping, so it ignored hover and clicks until the next one. It’s back at rest now.