1. Visit: http://jqueryui.com/themeroller/

2. Create your Theme and Download it

3. Place the contents of the downloaded css/custom-theme/ folder into the custom-theme folder.

4. When you export your job, the custom theme will be applied to your elements.

Hints:

* Datepicker Too Big!*
It appears that the Datapicker is quite large by default, as it replies on a body style having:
font:62.5% "Trebuchet MS",sans-serif;

The fix for us is to add font-size to the custom.css file's .ui-datepicker declaration:
.ui-datepicker { width: 17em; padding: .2em .2em 0; }
becomes...
.ui-datepicker { width: 17em; padding: .2em .2em 0; font-size:12px }
