I also found the difference between "Factory" and "Jungle" colors to be very difficult to discern in the example images.

Any design, be it for software, physical interfaces, traffic lights, or anything else that relies on colors for conveying information should also provide alternate means of encoding the same information. You can use shape, texture, lightness/saturation, order, or a number of other properties. The 4-5% of the population who are colorblind or have color vision deficiency will thank you.