That's the first time I had heard that as the reference. Most people think it is from Aperture Science from Portal. I actually used to have a camera icon (wit

That's the first time I had heard that as the reference. Most people think it is from Aperture Science from Portal. I actually used to have a camera icon (with a big lens in the middle) as the 'O' of Memorylage, but then replaced it with just the aperture of the camera, to make it cleaner. That symbol is actually pretty common in photography apps.