Outlining and Plain Text
The other day, Michael Schechter complained Scrivener’s outliner feature lacked a focus mode. To this, Aaron Mahnke laconically replied: Yeah, I still don’t understand the need. Type out an outline, paste it into
your document, and then type above it. It will always be visible right below
your book text. Why turn the folders into an outline?
CriticMarkup and a TextMate Bundle

After CriticMarkup was released with a toolkit including Sublime Text 2 theme and commands, I simply ported the easy stuff to TextMate. Since Sublime Text bundle files are heavily inspired by TextMate (to ensure compatibility with the popular Mac all-purpose editor, I suppose), this wasn’t a very complicated task.