Mayor's use of New Year's Eve event to stress city's openness to Europeans enrages leavers Sadiq Khan has incurred the wrath of Brexiters by including a pro-EU message in the New Year's Eve fireworks display in London. The mayor hailed the event, in which the London Eye was lit up in the blue-and-yellow colours of the EU flag, as part of a wider message to Europe showing the capital would stay "open-minded" and "outward looking" after Brexit.