public String getColorHtml(String type) {
		if (countByType.get(type) == null) return "ffffff"; // Not found? => White

		long count = get(type);

		Long max = Long.MIN_VALUE, min = Long.MAX_VALUE;
		for (String key : countByType.keySet()) {
			long v = get(key);
			max = Math.max(max, v);
			min = Math.min(min, v);
		}

		return GprHtml.heatMapColor(count, max, min, 0xff0000, 0x00ff00);
	}