Got a couple suggestions:
- CSS themes for the preview (so we can preview exactly how it will look on the site)
- MOAR fonts! (perhaps select any font)
- Image Upload Service Rackspace Cloud Files (or custom API)
- Kramdown support (or a choice of multiple Markdown converter)
RGB – #6: Rule Them All... Maybe Not
WordMark
RGB – #6: Rule Them All... Maybe Not
RGB – #6: Rule Them All... Maybe Not