Here are some formatting issues I've observed in some Kindle Store manga:

1) Incorrect black levels:

![IMG_1507-0001](https://github.com/user-attachments/assets/3fd06257-f415-488e-b639-a619189caa4d)


This is comparing the Kindle Store version of 
Fire Force Vol. 1 on a Kindle Scribe 
against the Humble Bundle version on a Hisense A9.
Both devices are using Eink Carta 1200 panels.

The Kindle Scribe is completely capable of showing correct black levels,
demonstrated here with the Humble Bundle version:

![IMG_1507-0002](https://github.com/user-attachments/assets/64823c30-dbd6-44b9-80bb-d0993a90928d)

Incorrect black levels causes manga to look faded and washed out, and is a lot harder to see and can cause eyestrain.
The effect is even more pronounced on eink vs LCD since it's already lower contrast.

2) Unneccesary margins, usually at the bottom

![IMG_1507-0009](https://github.com/user-attachments/assets/97316ea4-0f2e-403c-88c8-1671b201b79e)

Manga should be fullscreen, since most Kindles are much smaller than physical paper volumes.
I've even seen cases where margins are added on all 4 sides, not just the bottom.

3) Incorrect page turn direction for right to left manga.

![IMG_1507-0007](https://github.com/user-attachments/assets/1c5e7245-c743-48e9-9e2c-26200f4ebf3b)


4) 2 page spread alignment off by 1

Sometimes there's a single page misaligned in landscape:

![IMG_1507-0005](https://github.com/user-attachments/assets/6d1f35fb-9e09-4dea-89ca-6fce9a514b79)

which throws off the alignment off all further pages. The spine should have whitespace in the center, not on the edge.:


![IMG_1507-0006](https://github.com/user-attachments/assets/0bdcd391-7928-4725-bb2d-6145ba8da9f4)

Source: https://www.youtube.com/watch?v=mPJ4CBauJ68