- Use `unspecified' instead of `nil' to represent empty options,
hopefully this allows for better cooperation with themes loaded
after this one.
- Specify any face properties that come from the face definitions that
we don't want to use as `unspecified'.
- Change `diff-hl-*' to have a different foreground and background
color, the effect created before this should be reproducible by
setting `diff-hl-draw-borders' to nil.
- Change "#ff756e" to "#e09591" to make it stand out less.
- Make the `font-lock-warning-face' orange to make it stand out more,
now that the red color has been made to stand out less.
- Add `highlight-80+' face.
- Add `identica-mode' faces.
- Remove the background from `magit-item-highlight'.