Interesting... but it gives some problems to me, I don't know is I'm missing something. I wrote something like:
Code:
:root[__ibooks_internal_theme*="Night"] span.intuisco, span { background: -webkit-linear-gradient(white, white);
-webkit-text-fill-color: white;
}
It works in dark mode BUT the CSS are applied to white mode too, and ADE crashes when opens the EPUB...