All details of changes made to the Alien Covenant blu-ray can be found in the torrent file listing.
English and Spanish subtitles are also included in this release, as well as the DTS 5.1 audio track from the blu-ray and chapter listings.
Here are some screencap comparisons:
Blu-ray 1:
Regraded 1:

Blu-ray 2:

Regraded 2:

Blu-ray 3:

Regraded 3:

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : [email protected]
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Muxing mode : Header stripping
Codec ID : V_MPEG4/ISO/AVC
Duration : 2 h 2 min
Bit rate mode : Variable
Bit rate : 9 000 kb/s
Maximum bit rate : 14.0 Mb/s
Width : 1 920 pixels
Height : 804 pixels
Audio
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Format profile : ES Matrix / Core
Mode : 16
Format settings, Endianness : Big
Muxing mode : Header stripping
Codec ID : A_DTS
Duration : 2 h 2 min
Bit rate mode : Constant
Bit rate : 1 509 kb/s
Channel(s) : 7 channels / 6 channels
Channel positions : Front: L C R, Side: L R, Back: C, LFE / Front: L C R, Side: L R, LFE
Sampling rate : 48.0 kHz
Frame rate : 93.750 FPS (512 spf)
Bit depth : 24 bits
Compression mode : Lossy
Stream size : 1.29 GiB (15%)
Language : English
Default : Yes
Forced : No