anchor.diff:      }
     };
   
  +  const isPrediction = (light) => light.predicted != undefined && light.predicted != 'none';
  +
     const $ragImage = (event) => {
       const colour = event.colour;
       return $('<img>', {
  
positive.code:     }
    };
  
    const isRevert = (event) => {
      return event.revert != undefined;
    };
  
    const appendPredictCircle = ($lights, event) => {
      if (isPrediction(event)) {
  
negative.code:       }
      }
    };
  
    const counts = {
      pulling: 0,
  