Bug Report: Tag Images do not show properly when using different view modes

[Novel-Idea]

The various genre tags do not show up well when using other view modes in iBooks, specifically dark ones.

Suggestion: Make them true images instead of simply text.

[daniel-j]

I not only fixed the missing background color and change of text color, but also author's notes, date/character boxes and left/right side panel boxes!

I used this solution:
https://gist.github.com/adaptivegarage/aef95223fab9a39db45f

It is possible to create fully custom styling for the grey and black/night themes in the future.

[Novel-Idea]

Verified fix externally. Issue resolved.