Wow, I had no idea it was a gradational condition. Btw, could find no trace of Ellison Produce, just as well with major drought forcing a called water shortage down there.
I do have a rather odd kind of color blindness. I have never passed a single color blot test where you see a certain number, and yet I can easily see the above red airship label. My deficiency is red/green and you would think that this would be a problem with traffic lights but not really. I can see the green, yellow and red lights ok but if the sun is shining extra brightly on the light, then I sometimes get confused as to which color is showing. During walks, bright red berries on shrubs are lost on me, I only see the green leaves. From a distance, I honestly can't tell if a sign, or a car is green, brown, red or black. Ha, I'd be a great witness if I were to appear in court to describe what color clothing the suspect was wearing.