Tap a Still Life to collect it.
This is based on Conway's Game of Life and a small thing can occur, Still Life's! They are when a pattern is styled in such a way that it does nothing forever. The chances of the Still Life's are based off the actual chance for it to occur in a simulation of the game. If one of them is blue, it means nobody has ever seen it before. If one is dark blue, that means while you've never seen it, someone else has. If it's black, ignore it, it isn't new to you or anyone at all. 25/206 Still Life's in-game, the chance of getting the current hardest one is 0.00132675264024%.