Journalists filed into a bright little room at the Royal Society of Arts in London. At the front was a stand featuring a large photo of Ms Bennett posing with her predecessor as leader, Caroline Lucas (I looked in vain for any photo of Ms Bennett that didn’t also feature Ms Lucas). Another stand beside it was emblazoned with the party’s slogan, “Standing for the Common Good”, plus, in little letters above and below it, the names of hundreds of party supporters. “Cordelia from London… Clement from Guildford… Felicity from Cardigan… Darius, Verity, Lyndon, Jasmin, Colette…”