NO. NO. NO! I don't know how this misinformation constantly continues. Graal management does a nice job in controlling this stuff. BUT, here's the truth. And if this post gets deleted or I get banned (worst case), I hope enough of you see this to stop spreading misinformation.

I'll use Graphics as an example because Levels, Scripts, etc. are more so useless out of Graal context. But ownership of Graphics solely belong to the artist, UNLESS

1) Paid for or given proper compensation for labor (Usually a contract or wage)
2) Given expressed consent or donation, via physical or verbal documentation, to hand over ownership interests. (Check marking a User Agreement or such does NOT give Graal owernship of your property)
3) The Graphics itself are plagiarized and copyrighted, of which nobody can claim for commercial purposes

Because Graal is using YOUR graphics for commercial purposes, i.e. to make money, YOU the artist have a right to take your graphics away if you want. There is NO "blanket" agreement, especially one that consists of check marking a User Agreement or Policy, that can strip you of ownership of your intellectual property. Graal can try to sue you for taking your graphics but unless you've been paid or given expressed consent, it is your property. The reason nobody has ever had a fight with Graal over this, is because graphics are usually made by teenagers that have no purpose for their stuff other than leaving it on Graal.