Graphstream and Icons

[Dennis Krauß <denniskrauss AT hotmail.de>]

Hello GraphStream-Users,

at first i want to apologize for my bad english (im german).
I need some help to use icons on my graph. To be exact i need two things
1) Icons as nodes
2) Icons beside the nodes

so i need the things shown in the first and last picture at the top row from following tutorial:
http://graphstream-project.org/doc/Tutorials/Graph-Visualisation_1.0/#viewers


I think i have to write a stylesheet like
 

String styleSheet = "node {size: 100px; fill-mode: image-scaled;}"
  + "node.fun {fill-image: url('fun.gif');}"
  + "node.dull {fill-image: url('images/head.png');"
  + "}";

but somehow i dont get it running. i never get icons -.-
could one of you show me an examlpe with icons for both of my variants?

Thanks!