These are built into OpenColorIO, and will start working well with the upcoming wide gamut display changes. The ACES 2.0 view transform provides an alternative to AgX and Filmic, with similar purpose. It is also useful for those working in an ACES pipeline when the full ACES OpenColorIO config is not needed. Rec.2100-PQ display is a HDR display, and will be what you select when wanting to see HDR (and wide gamut) colors, and export them to HDR video. Ref #144911 Pull Request: https://projects.blender.org/blender/blender/pulls/144565