Minecraft 1.12, Minecraft 1.12.1 Pre-Release 1, Minecraft 1.12.1, Minecraft 1.12.2, Minecraft 18w01a, Minecraft 18w03b, Minecraft 18w05a, Minecraft 18w16a, Minecraft 18w22a, Minecraft 1.13-pre1, Minecraft 1.13-pre2
I don't know if this is already known to be "WaI":
If you're in Spectator Mode and go only a bit into a solid block (on "feet level" already), the Sky darkens. I can understand this behaviour if you're completely inside solid blocks, but I wonder if this really should also be the case for when you're only a tiny bit inside a block?
I'd have expected that the Sky darkens as soon as you're inside a block on your eye level.
I'd have expected to not be the case on feet level already.
(I don't consider this a suggestion/request, but an illogical inconsistency of sorts, but if you do consider this bugpost invalid, I'll live with it )
It was fixed for me in 1.12 pre-2 (see my comment below), the Sky gotten only a slight darker tint, but it's again happening in 1.12.2 release, so whatever changed inbetween these versions seem to have affected a fix for this bug.
2017/10/26: In 17w43b it is fixed again (didn't test 17w43a), but given the fact that it already was fixed once before and then occurred afterwards again, I suggest to leave this bugpost open until 1.13 release, but the decision is of course up to the mods, I can also just have it being reopened again
Update 18w01a: Still slightly darker, still better than it was in the very beginning, but still unsure whether the current optical status quo is WaI or not.