public void setBorderColor(final Color PAINT) {
        if (null == borderColor) {
            _borderColor = PAINT;
            fireTileEvent(REDRAW_EVENT);
        } else {
            if (!borderColor.isBound()) {
                borderColor.set(PAINT);
            }
        }
    }
Defines the Paint object that will be used to draw the border of the tile.

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