For which languages does it work? The comments in prettify.js are authoritative but the lexer should work on a number of languages including C and friends, Java, Python, Bash, SQL, HTML, XML, CSS, ...

I expected the syntax highlighting in C to match that of C++. Also, the parentheses in MY_CASE and ERIS_TYPE_WHEN are colored differently because the switch braces are in two separate macro bodies.