For the 2005 general election, I had a party featuring a gigantic cheesecake with differentiated segments by allegiance. It contained no purple, which you could call leftie bias, but it genuinely didn’t seem necessary. It certainly wasn’t because I couldn’t think of a purple fruit. The Lib Dems did badly out of that, but mainly because you should never put banana on a cheesecake; they did fine in 2010, when I represented them with lemon macaroons.