Nice, I see it works well. Personally I don't get the reading indicators and predicted read time info. It gives me the impression the writer thinks i'm either stressed / short of time or that I entered a reading competition. I read because I want/need the info or because I like the book. If not, I quit reading it. So, even though it's not for me, it's still nice and I hope it served it's purpose end keeps you from burning out.

Firefox does not support scroll-driven animations

Into the trash bin it goes.