Interesting demo, but I think the retina resolution has more effect on this. Also note that blue neurons are also much less dense, and our eye blue channel has

Interesting demo, but I think the retina resolution has more effect on this. Also note that blue neurons are also much less dense, and our eye blue channel has natively much lower resolution. This is why in old Windows installers, blue color was used for gradient, when colors were 16 or 256 -- blue and black dots were blurred in the eyes, while the same combo of green dots was very visible. A windows setup with blue background: https://guidebookgallery.org/pics/gui/installation/copying/win31-1-1.png https://guidebookgallery.org/pics/gui/installation/copying/w... (Don't have a green one, but one may try photoshopping this one.)