epub link rendering forced dark

[heckj]

from reddit:

Just FYI, the links in the ePub version render as dark gray even when Books has a black background, making them hard to read. I'm not sure whether that's something you can fix for Books or have to change in general, just thought I'd let you know.

[heckj]

Related comment:

I would like to make one suggestion: I tend to read these books at night on my iPad (when I have time to focus) but there is an issue with your book when iBooks switches to dark mode. Several of the fonts become nearly invisible. I can manually force light mode but if you could address that it would be appreciated. One final comment: Please try using iBooks with your book on the iPad. I have found that several times everything hangs for 5-30 seconds - Cannot change page, etc. and then all of a sudden all the page changes occur. I also need to restart iBooks sometimes while reading your book. I am using an iPad Pro 10.5” with 13.3.1.

[heckj]

I did some digging into this, and it's definitely a side effect of the tooling I'm using and their default CSS settings. In some ways, it's fairly directly related to #30 - in that the CSS structure that's provided by my toolchain is intentionally constraining, ideally aimed at working on a large number of devices - but clearly not perfect.

Just to document it - I've checked this against two version of asciidoctor-epub3:

• Asciidoctor EPUB3 1.5.0.alpha.9 using Asciidoctor 2.0.10
• Asciidoctor EPUB3 1.5.0.alpha.12 using Asciidoctor 2.0.10

with substantially the same result.