public void setHighlightColor(final Color COLOR) {
        if (null == highlightColor) {
            _highlightColor = COLOR;
            fireSectionEvent(UPDATE_EVENT);
        } else {
            highlightColor.set(COLOR);
        }
    }
Defines the color that will be used to colorize a highlighted section
@param COLOR
src/main/java/eu/hansolo/tilesfx/Section.java