This package adds CodeMirror to the WebGUI::Form::Codearea control. CodeMirror is a javascript-based syntax highlighter and auto-indenter with support for CSS, HTML, and JavaScript. It supports mixing CSS and JS into your HTML as well.
To install, untar the package from your WebGUI root directory (usually /data/WebGUI). Run the patch as follows:
cd /data/WebGUI; patch -p0 < patches/7.6.1-add-codemirror-to-codearea.patch
Then restart Apache and try it out!