How to change the look of JBuilder.
   

To change the look of JBuilder you have to edit the user_xx.properties (where xx stands for the country you live e.g. you live in Germany the correct filename is user_de.properties). You can find this file in your user home directory in the .jbuilder folder (in JBuilder 2005 the name of the folder is .primetime2005). Open this file in a text editor and change respectively insert the following line 
browser;look_and_feel=com.jtattoo.plaf.smart.SmartLookAndFeel
Copy the JTattoo.jar file into the XXX/jbuilder/lib folder. You can find this folder in the relative path of your JBuilder installation.

Next time you start JBuilder you will be suprised.