ghowkay

WP Code Editor with Syntax Highlighter is a must have plugin if you hate the plain text code editor in the wordpress admin panel. It converts it to a beautify code friendly editor and saves you any stress in using an external code editor.
Features: 
* Supports Xml, php, css, html, javascript 
* Matching tag functions 
* Matching bracket functions. 
* Code indentation. 
* Line numbering.

WP Code Eitor with Syntax Highlighter

This wordpress plugin converts the default plain text theme and plugins editor in wordpress to a pretty code editor.

The Advanced WordPress Theme Editor plugin will allow you to edit your theme directly in your blog admin section but with a better experience since it will format and highlight your source code with nice colours.
The plugin is compatible with WP 2.8 and less and is based on the Edit Area script that supports at least PHP, CSS, JS and many more file types.

Advanced WordPress Theme Editor

This plugin will improve your experience when editing yout wp themes since it will format and highlight your source code with nice colours.

WP Code Eitor with Syntax Highlighter vs Advanced WordPress Theme Editor