Hey there heroes! I came across an interesting PS3 theme of Young Justice that perhaps you PS3 players may like to sport on your console.
http://www.ps3-themes.com/movies-tv/dc-nation-young-justice-invastion.html You can also got to ps3-themes.com and download it directly into your PS3.
Use the browser on your PS3 and just type in the above URL (Either the full one there or the site itself on PS3). It's fairly new so it's only the 3rd one down on main menu.
Also there is to link you can use to download, either an HD one (For those sporting an HDTV+HD inputs) and an SD link (For those who use a composite/regular input)
Enjoy it!
**I apologize since it's not necessarily Injustice-related but since it's DC I thought it be appropriate to share here with you guys directly**