[Trisquel-users] OS X screenshots in wiki?

[gameboyab]

I would like to put some screenshots of Mac OS X to accompany my text at the  
bottom of this wiki page [0]. Would this violate copyright of the Aqua (Mac  
OS X GUI) UI?
If not, would I have to put a copyright notice near the screenshots?
[0] https://trisquel.info/en/wiki/burn-trisquel-cd-images