The fact that Stirling is not a black-tie event allows a certain peacock tendency to emerge in some of the male guests. So to contrast with George Ferguson’s trademark red trousers, Christophe Egret of Studio Egret West was sporting a pair in a ravishing lime green. This was also the colour of the shirt that Richard Rogers was wearing when interviewed on the Channel 4 programme. But on the night, he settled for a remarkably restrained black jacket and white shirt. Meanwhile, many of the women at the dinner seemed to have sprouted unsightly purple blotches on their exposed arms and shoulders. Fortunately, this was not an outbreak of some hideous disease, but an effect of the lighting scheme, with coloured light filtering from above through a mesh.