Elle Stone has developed LCMS-based ICC profile-making code which makes a variety of RGB working space profiles, plus Gray profiles, plus XYZ and LAB identity profiles. The code includes the most commonly used RGB working space profiles (including ACES, ACEScg, AdobeRGB1998, ProPhotoRGB, Rec.2020, and sRGB/Rec.709), plus an assortment of less commonly used profiles. Each RGB working space profile "family" is provided with the profile's standard Tone Reproduction Curve ("TRC"), the linear gamma, gamma 1.8, and gamma 2.2 TRCs, and the sRGB, LAB "L", and Rec709 TRCs, in both V2 and V4 versions. The profiles are carefully checked for accuracy and are guaranteed to be well-behaved, making them suitable for colour-managed image editing. ellelstone/elles_icc_profiles