Code Display is a demo with several sub-pages for integrating popular syntax highlight libs in APEX.

	CodeMirror	SyntaxHighlighter	PrismJS	highlight.js
Syntax Highlight
UI Friendly
Integration Difficulty

Here is my rough review for these highlight libs, just in my opinion and based on my work with them in APEX. And the review might be updated based on my latest work. Welcome for any advises or comments.

updated 20170625: CodeMirror multiple-line highlighting is done in demo page.