static const QColor SignalColours[4];
static const QColor GridMajorColor, GridMinorColor;
static const QColor SamplingPointColour;
static const QColor SignalColours[4];
static const QColor GridMajorColor, GridMinorColor;
static const QColor SamplingPointColour;
static const QColor ThresholdColor;
static const QColor ThresholdColorLo;
static const QColor ThresholdColorNe;
static const QColor ThresholdColor;
static const QColor ThresholdColorLo;
static const QColor ThresholdColorNe;