Function deltaFill

src/traces/indicator/plot.js:631–633

(d)

            return (value > 0 ? trace.delta.increasing.symbol : trace.delta.decreasing.symbol) + deltaPrefix + numberFmt(value) + deltaSuffix;
        };
        var deltaFill = function(d) {
            return d.delta >= 0 ? trace.delta.increasing.color : trace.delta.decreasing.color;
        };
        if(trace._deltaLastValue === undefined) {
            trace._deltaLastValue = deltaValue(cd[0]);
        }