The core look of Tobar Segais is based on Twitter Bootstrap. Any custom full build of Bootstrap 2.0.x should work as a drop in replacement that offers the customized look and feel.
Assuming you are building your Tobar Segais web application using the technique described in Chapter 2 all you need do is create the file src/main/webapp/css/bootstrap.min.css
containing the minified version of your custom build of Twitter Bootstrap.
If you have customized versions of the Glyph Icons, these should be put at the paths src/main/webapp/img/glyphicons-halflings.png
and src/main/webapp/img/glyphicons-halflings-white.png
If you just want to apply some simple tweaks to the CSS after Twitter Bootstrap is loaded all you need to do is create the file src/main/webapp/css/custom.css
this file is included after all the other CSS files have been included.