"look at how massive the green space is..." This is why, in non-symmetric color coding systems, Green is given the largest share. For example 16-bit image form

"look at how massive the green space is..." This is why, in non-symmetric color coding systems, Green is given the largest share. For example 16-bit image formats give 5 bits for Red and Blue, but 6 bits for Green. The Bayer color pattern pattern used on CMOS sensors (basically all sensors on consumer devices) has interleaved rows of Green and Red and rows of Blue and Green: twice as much green as the other colors! Finally, green represents more than 50% of Luminance! From an evolutionary perspective, it makes sense to be more sensitive in the green spectrum: we were surrounded by green plants. Better catch the nuances to better identify predators or prey!