Going back a few years, Brown was always a man to wear a good scarlet-red tie, in keeping with the colour of the Labour Party. But then he changed to wearing pink ties, and rumours abounded that this was some sort of odd attempt to 'soften' his image for delicate middle-England types, who might have thought he was Khrushchev in disguise or something like that. Now, though, the colour of choice seems to be light blue- can anything be made of this? A deliberate two-fingered salute to David Cameron? A sign of moderation in policies? Or just the latest fashion statement from Westminster?