semara,
Just to give a clearer explanation, I believe you are free to use PlaneShift art for personal use only, such as a fan or a guild site. In other words in a noncommercial context.
Many gaming companies release a dedicated "Fan Site Kit" with its own license and ToS because they
- want to approve anything fan site related in advance and don't allow unique art assets not included in a kit without express permission
- help the fans who are not experienced web designers by including various templates along with the resources
- all of the above
PlaneShift 'art' folder contains a README file that refers to PlaneShift License. This is the part from that license that covers personal use:
3. You may use the provided Material, for personal use only...
You are probably not allowed to modify the material but you may want to email Atomic Blue to clarify it.
There you go.
