WP-Syntax is a fantastic WordPress plugin which automatically syntax-highlights source code in <pre> blocks for a large number of languages. Unfortunately, styling WP-Syntax’s output can be a bit of a headache.
I have put together WP-Syntax Colorizer, a WordPress plugin that gathers all of the functions required to set custom colors for your code snippets, and it is simply run alongside WP-Syntax.
Free Download: Download this wp-plugin