Thing is that it's Superman it SHOULD be bright and colorful like Avengers (or, hell, any of the Marvel-U movies) was. Not the kind of movie where the only splash of color you see is the blue on the Sears building or the blues and yellows in the IHOP. The color tone and vibrancy was just too low in MoS, the movie might of well have been in black-n-white.
Well we already got
that with the Donner movies. Those were about as bright and comic booky as you can get.
As much as I loved that back then, I find the idea of a more grounded and realistic Superman much
more intriguing now.