tapestry-model-web is a tiny module that holds common static web files: images, stylesheets, scripts, etc.
This little module is very useful for Tynamo development because it prevents us from duplicating files all over the place.
If you want change the stylesheets, you'd need to remove the tapestry-model-web dependency from your pom.xml and copy its resources to your webapp folder.
Here are the steps:
1) Download and unzip the contents of the tapestry-model-web module into your webapp folder.
If you don't want to do it manually here is a script that will help you.
2) Check your pom.xml for the tapestry-model-web dependency and remove it.
3) Finally change your Layout.java to point to the context instead of the classpath
That's it. Now you can play around with the images and stylesheets.