@Override protected void invalidated() {
                    if (getTimePeriod().getSeconds() < get().getSeconds()) {
                        setTimePeriod(get());
                    }
                    fireTileEvent(TIME_PERIOD_EVENT);
                }
Defines the duration that will be used to store datapoints in the skin
@param MAX_PERIOD
src/main/java/eu/hansolo/tilesfx/Tile.java