public void setDecimals(final int DECIMALS) {
        if (null == decimals) {
            _decimals = clamp(0, MAX_NO_OF_DECIMALS, DECIMALS);
            fireTileEvent(REDRAW_EVENT);
        } else {
            if (!decimals.isBound()) {
                decimals.set(DECIMALS);
            }
        }
    }
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