@Scifier: I created the app using NetBeans 5.5 (
netbeans.org). Just open the complete directory in NetBeans and you can easily build & run the project.
About the color maps: I myself always use the GUI, an it is a (little) hassle to always select the colors. So I decided to do just as scifier suggested, and implemented color map presets.
Check version 1.7 for details (see first post for binary & source)