Does anyone recognize this symbol?

I was looking through the photos I took and happened to notice this strange symbol in one of them, its like a swirl with something dripping from it. Does anyone have an explanation for this? (Photo was taken in the Valentine bar during the 'A Quiet Time' mission.

I was looking through the photos I took and happened to notice this strange symbol in one of them, its like a swirl with something dripping from it. Does anyone have an explanation for this? (Photo was taken in the Valentine bar during the 'A Quiet Time' mission.