public BooleanProperty checkLowerThresholdProperty() {
        if (null == checkLowerThreshold) { checkLowerThreshold = new SimpleBooleanProperty(Tile.this, "checkLowerThreshold", _checkLowerThreshold); }
        return checkLowerThreshold;
    }
Defines if the current value should be checked against the lower threshold
@param CHECK
src/main/java/eu/hansolo/tilesfx/Tile.java