Well, if you tend to jump around genres, is there certain plots you like? Characters or character arcs you like to see? Tropes? Maybe describe what emotions you want a book to evoke--"I want a book to give me the warm fuzzies" or "I like books that make me thoughtful".

For example, I have a soft spot for stories where a main character time travels back into their own past and has to try and change their fate even as they have to play things by ear when things change from their memories. I could say that's Fantasy, but it's a pretty niche plot there.

I don't think I could read an entire book like that, especially the grey backgrounds as it'd drive my eyes crazy. It's fine to do things like a page that does interesting things with the text as a visual metaphor, but what you describe sounds like it'd be too much effort to parse for long periods.