public void setTitle(final String TITLE) {
        if (null == title) {
            _title = null == TITLE ? "" : TITLE;
            fireTileEvent(VISIBILITY_EVENT);
            fireTileEvent(REDRAW_EVENT);
        } else {
            if (!title.isBound()) {
                title.set(TITLE);
            }
        }
    }
Sets the title of the tile. This title will only be visible
if it is not empty.

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