So for the 2016 Rio Olympics, the Skytree continues its trend of special illuminations.
The standard illumination during the games rotates between white and red for the Japanese flag (日の丸):
And yellow and green for the Brazilian flag:
But on days when Japan has won a Gold Medal, they illuminate the Skytree in gold:
No silver or bronze. Guess Japan is win or go home.
Its neat to think that I might see they games in 4 years from now. That is, after all, why the JET Program has expanded to Tokyo.