Dark Theme Improvement

[Wraith]

I'm looking to consolidate the things that need to be done to improve the dark theme on this board, since it looks like we're keeping it. Post here if you've noticed anything you'd like to get changed.

The List:

- Could do with more visual distinction between new posts/no new post icons
- Dark text on dark background in login text boxes
- Dark text in quick reply box (no repro, Ominous only)
- Some WYSIWYG icons a bit hard to see
- Hyperlinks should stand out more