Nobody is forgetting that. They're asking to have Halo's former stylization back.

: There's really a much easier way to address the "Bland and
: Dullness" in video game maps. And the gamer is the one with the
: answer. Simply adjust the video settings on your TV.

You can juice up the contrast or saturation by doing that, but that won't give you a healthy colour scheme, as discussed in this subthread. You really want the colour schema carefully implemented into the source imagery.