Here's my way how I got this icon customized for a proper desktop-starter. While I'm using Linux with XFCE I will describe how I did it with that OS and add some hints for windows-users.
The icon will be found within the kryoflux-ui.jar file you'll find in /kryoflux/dtc/ (usual installation). As this file is a standard jar-archiv we can use file-roller (for example) to extract the content. (Windows-user may prefer WinRar at this point.) Inside the archiv we will find the icon at /images/disk.png and can copy it from there to wherever we want it for further use.
After that it is easy to use it just like any other picture-file within a programm-starter on the desktop.
Windows-user will have to convert the disk.png file to disk.ico before further use. That can be done with irfan-view for example or the online-converter at http://www.icoconverter.com/
Hope this helps some people to get a proper kryoflux-icon for there desktop...
You can open the .jar file with 7zip, then extract images, open in a drawing program. Save as .bmp and rename it .ico - then replace the icon on your shortcut or .exe-file. Looks a lot nice now.