[17:42]  <planetmaker>  http://creativecommons.org/licenses/by-sa/3.0/nl/ <-- just state that you license your work under that license and all is fine.
[17:43]  <planetmaker>  it's not work. It's just a statement of intent who may do what with the grfs. Bloody hell.
[17:43]  <planetmaker>  (and that statement is: do what you like :P )
[17:44]  <XeryusTC>  well, that is my statement indeed :P
[17:44]  <planetmaker>  yeah. But that has to be documented. :)
[17:44]  <XeryusTC>  i dont care if other people take my code, the artists should worry about their graphics :P