It's disingenuous to say that Disney invented these "colors", or that they're "colors" at all. The article is even explicit that they are many different shades, that vary according to surroundings.
More accurately this is a color design strategy to use muddy greens to blend/hide equipment/fences/buildings, and sky blues to make buildings seem shorter and less obtrusive.
You can see stuff painted dark green in any state park, so I doubt Disney "invented" that strategy. The sky blue technique is interesting, though -- this is the first time I've heard of or seen something like that.
More accurately this is a color design strategy to use muddy greens to blend/hide equipment/fences/buildings, and sky blues to make buildings seem shorter and less obtrusive.
You can see stuff painted dark green in any state park, so I doubt Disney "invented" that strategy. The sky blue technique is interesting, though -- this is the first time I've heard of or seen something like that.