not stolen, maybe inspired. Just think of all the images you see in a day, they all go into your mind permanently, maybe the people who designed the logo saw this a long time ago and it provided the inspiration.
Even if they intentionally "stole" the idea from some stupid video game, they redesigned it, recolored it, and reapplied it as a concept logo for a product (as a logo).
What do you call 1,000 lawyers at the bottom of the ocean....
Just because looks similar doesn't mean its a copy. I happen to have a window in my house that looks just like Windows logo. Should I sue them?
Remember the ST:TOS episode The Trouble With Tribbles by David Gerrold? Before it aired the writer he got a call from SF writer Robert A. Heinlein. David was worried because in 1952 Heinlein had written a book called The Rolling Stones. In that book was the Martian Flat Cat, which is furry, no discernible features and breed like wildfire as long as there was food. Was the Tribble idea stolen from Heinlein's book?
Heinlein wasn't upset and asked for an autographed copy of the script. He felt that he owed his story to the 1905 short story Pigs Is Pigs by Ellis Parker Butler.