Feature Request: Syntax coloring when code is pasted

This looks good: https://github.com/ccampbell/rainbow

Platforms: WebView

Note from Jon: Yes, that would be easy. This could work crossplatform in the optional HTML view. Suppose we should just let user enable it whenever they want. That would be ideal. Some kind of code detection would be nice tool, but I don't wanna go overboard here... I do want to avoid sequences or slash command type things that may interfere with other codes. But I'm not opposed to parsing the GH style ruby tags

Note #2: CodeRay might be a good option