It is important to remember that it is the Edwardian redecoration of Buckingham Palace that gives it that overall air of red, white and gold.
The time must surely be near for a major renovation of a gallery which houses one of the world's most evocative collections of paintings. Time and cash were perhaps not sufficient to allow redecoration ahead of the Festival.
Where it's possible that athletes or visitors might stray into residential buildings, they've been given a touch of interior redecoration.