I am using Pharo smalltalk image with latest seaside loaded.
I had loaded the JQBaseTheme in my project.
What should i do to bypass the colourful,large view of the UITab and show a simple UITab as shown in http://jqueryui.com/demos/tabs/default.html
In addition to the default style of JQueryUI you can provide your own styles that set font-family and font-size as you like. On the page you mention they use http://jqueryui.com/demos/demos.css with the following CSS rule: