Changing topcolor is unlocked by karma. I believe the required karma is 250. https://news.ycombinator.com/item?id=438957 https://news.ycombinator.com/item?id=4

Changing topcolor is unlocked by karma. I believe the required karma is 250. https://news.ycombinator.com/item?id=438957 https://news.ycombinator.com/item?id=438957 You may have been above 250 at one point and since dipped back below. As of this comment it looks like you have 245.