I've been playing with Superhero generators lately, as a break from working on my own solar system generator. It turns out that there are several and they all have their advantages and disadvantages. One of the most versatile was ald older version of the Brazilian Fábrica de Heróis, that was known as Hero-O-Matic. (Others, for the curious are Hero Machine and Marvel Kids). Hero-O-Matic has been superseded by a new beta of Fábrica de Heróis, one that I suspect not so coincidentally contains no violations of DC's or Marvel's copyrights. The older version, however had lots of logos borrowed straight from the comics. Being a comicbook fan for more than 50 years, I recognize most of them, but there's one that's got me beat. It appears in the repertoire of all 4 models and is put together from shirt and pants fragments that fit together.
Below, I've had each of the 4 models show of the symbol in gray over generic outfits. It reminded my sons and me of some of the more abstract Green Lantern costumes, so I put together one of those as well. It looks pretty cool, but I'm pretty sure that's not where it comes from. In fact, my best guess is that it's not from DC at all, but rather Marvel. The costume pieces nearest it in the UI are used for building Wolverine, The Wasp, Wonder Man and Thor.
So, if you have any idea, where this emblem comes from, please let me know.