@Override protected void invalidated() {
                    final int VALUE = get();
                    if (VALUE < 0 || VALUE > MAX_NO_OF_DECIMALS) set(clamp(0, MAX_NO_OF_DECIMALS, VALUE));
                    fireTileEvent(REDRAW_EVENT);
                }
Defines the number of decimals that will be used to format the
value of the tile. The number of decimals will be clamped to
a value between 0-3.

@param DECIMALS
src/main/java/eu/hansolo/tilesfx/Tile.java