Hmm. I'm not sure. I am R/G colorblind myself, and I don't confuse red and green traffic lights; they look completely different to me. On the other hand, some d

Hmm. I'm not sure. I am R/G colorblind myself, and I don't confuse red and green traffic lights; they look completely different to me. On the other hand, some devices use LEDs that can be red or green (like the Nintendo DS; red means it's time to charge the battery), and I can't tell them apart at all. Also, for what it's worth, on my MacBook the images in the aforementioned blog post look almost the same to me. But I looked at them on a different computer as well, a netbook where I tweaked the color settings, and there they don't look the same at all. (I still can't pass the Ishihara test on that one though... :-)