CriticMarkup Syntax Highlighting

[mmerline]

Describe your feature request Please add CriticMarkup syntax highlighting. You can review the CriticMarkup Toolkit here.

Critic Markup is intended to provide basic editorial change tracking in plain text files. The syntax is compatible with Markdown, MultiMarkdown and HTML.

The Basic Syntax

There are five types of Critic marks:

• Addition {++ ++}
• Deletion {-- --}
• Substitution {~~ ~> ~~}
• Comment {>> <<}
• Highlight {== ==}{>> <<}

Using these five basic marks you can successfully copy edit in plain text.

The Sublime Text Markdown Editing package handles CriticMarkup nicely. There's clear syntax highlighting, that's useful for adding inline comments to notes, but it doesn't get in the way.

Additional context I'd like to see this syntax highlighting added in the default themes on both Mac and iOS.