Yeah, plus it seem that the automatic behave in a fairly variable manner among users and screen, so definitely not something that we can be finely refine.
(second time I thinking too much for a point of detail, I need to tone down my perfectionism and nitpicking)
Else, it seem that the scrambled file given early have a strange behave:
The dominant color of the spine does not appear to be the same as the one used for the fade-in animation. In more extreme case the spine became even green, sign that the internal dominant color is realy incorrect (but I haven't been able to reproduce this one)
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Symphony of the Wind - Steven McKinnon_scrambled.epub