Sencha Themes Builder/Generator
You can build Sencha Touch 2 Themes without installing any Rubby/Sass/Compass tools
A working demo is here http://developerextensions.com/index.php/sencha-touch-2-themes-builder http://developerextensions.com
<script type="text/javascript" src="http://developerextensions.com/components/com_extensiondemo/views/extensiondemo/tmpl/sencha2/ux/themeBuilder/themeBuilder.js"></script>