Color was an "elastic" social photo network based on shared locations. Elastic meaning that instead of having binary "friends" and "non-friends," your friendshi

Color was an "elastic" social photo network based on shared locations. Elastic meaning that instead of having binary "friends" and "non-friends," your friendship with people is was a algorithmic strength value based on how often you shared photos from the same location. (Which would map to how often you were together or at least at the same events, presumably mapping to how close you are in the present.)