* Add ACES SDR to HDR displays * Add ACES reference gamut compression look. * Name non-HDR AgX for HDR displays "AgX - SDR", consistent with ACES and makes it more clear that this may not be the one you want for HDR. This required updating test blend files. * Mark all non-sRGB view transform colorspaces as inactive, so they don't pollute the colorspaces list. The HDR ones were already inactive. Ref #144911 Pull Request: https://projects.blender.org/blender/blender/pulls/145820