You will love it for the first 30 minutes, after that it will become annoying and heavy on your eyes

Why the yellow background though? It'd look nicer with the light cyan background. Save the yellow and red for some kind of attention colors.

Even with the "right colors" one can go wrong if the colors are not used in a smart way: green over red or blue over yellow is seldom good for something people are expected to look at longer times.

(Yes, I fully understand the first example was a "don't do this", but it was not the best it could be with those colors)

For people with blue-yellow color blindness that page is a nightmare.