Scrolling feature is hard to discover

[Yoric]

I can open a book, but I cannot scroll. Actually, I cannot find how to go to the next page.

Ideally, dragging the screen to the left/right should move to the previous/next page. If this can't be done (yet), regular scrolling should work.

[aratagobal]

We disabled the scroll when reading it's unnecessary. To go to the next page, you can click on the right marge and on the left marge to the previous. Otherwise you can use right key and left key of the keyboard.

[Yoric]

You should make this more intuitive. For instance, when opening a page and when returning from blur, display an arrow in each margin (left arrow in the left margin, right arrow in the right margin) that immediately fades to opacity 0.1. This will let people notice the controls.

[aratagobal]

We will try to add a manual. Currently it is perhaps not very intuitive for the average user.

[Yoric]

Nobody reads manuals :)

[aratagobal]

Fix in c5f8ce64a6