How do you determine what the text will be during nightmare in Sigil?

[morty92222]

My stylesheet has css for the text to be red. This is the only color property I have on my css stylesheet and this is the only css sheet I got.

When it's daytime, Apple Books shows the text red, however, during nightmare, the text (which is a link) turns blue. I understand that links by default are blue, but doesn't my color rule change that?

Thank you.

[KevinH]

readers built in css can and will overrule the book's css. This really has nothing to do with Sigil. My guess is Books has a dark and light theme which are taking orecedence.

[morty92222]

Originally Posted by KevinH

readers built in css can and will overrule the book's css. This really has nothing to do with Sigil. My guess is Books has a dark and light theme which are taking orecedence.

Thank you. But why does my CSS work for day mode if the reader got its own already?

[Tex2002ans]

Originally Posted by morty92222

Thank you. But why does my CSS work for day mode if the reader got its own already?

Users can choose whatever background colors they want. When you force colors, this may lead to a serious readability problem.

The most common of these is tools/programs/people accidentally setting the text as "black":

p {
color: #000000;
}

And people don't notice it, because "white background is the default" (see Word, LibreOffice, InDesign, etc. etc.).

So when Apple flips over to Night Mode, they probably specifically override font colors to make sure that "black-on-black" (or another unreadable combination) doesn't happen.

A lot of this was discussed in:

2020: "Colored Text, EPUB, Android Dark Mode"

or I explained a similar situation with images of music notes ♫♫♫♫♫♫♫ and changing background/font colors:

2016: "Problem with inline image" (Posts #14 + #22)

[phillipgessert]

It might just be inverting it rather than falling back to initial blue, even if the end result seems similar. I could see them doing that to avoid combos that aren’t very dark mode friendly. Red text on black might actually be one such.