PINK was the defining colour of the last week. The shocking fuchsia suit Margaret Thatcher wore to meet Gordon Brown wasnât just the first thing to hand in the wardrobe. As a former British foreign secretary acidly put it, âshe has a perfectly good blue dress at homeâ. She was seeking attention and she got it, dominating the headlines at the expense of Conservative leader David Cameronâs long-awaited âgreenâ report.