Have a look at these before and after photos of Boris. Now tending to shun black, Boris wears more neutral-coloured suits and his ties are textured with a subtle pattern. The overall look is softer. White shirts are given less prominence in his wardrobe. Crucially, the cut of his suit coat around the shoulders is more generous, more comfortable. To paraphrase Aristotle: the high minded man dresses as if he is worthy of great office.