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I'm using a MacBook Pro (13-inch Mid 2012) Mac OS Catalina 10.15.7 Affinity Designer 1.10.6 with Metal compute acceleration enable Affinity Photo 1.10.6 with Metal compute acceleration enable Here's a summary about the issues that I'm having: ( Files attached or: https://www.dropbox.com/s/3jzp0azhmbvoc8x/Images.zip?dl=0 ) ( Ignore all "._file" files as they are thumbnails ) I have this Image 'A', which is a Normal Map that represents X,Y,Z, information stored into the RGB channels respectively. (Here's a more detailed explanation about Normal maps: https://en.wikipedia.org/wiki/Normal_mapping ) But texture 'A' needed to be "boosted" to fit the current standard normal space. So 'A' needed to be exactly the same as 'B' but instead I'm getting as a result image 'C' and you can see on 'Channel Breakdown' that the result of 'C' is way different than 'B' in a weird way. The methods used to achieve 'B' and 'C' are the following: B: Can be achieved by multiplying 2.25 times 'A' (or 225%); or increasing the saturation using HSV by a 47% inside Affinity Photo (but this method has its flaws as well) C: Increasing the saturation using HSV by 32% inside Affinity Designer. But the issue here is that the two different programs yield a different results. You can see on 'P-AD' that this is the method used to create 'C', on the center you will find a square with the target color that is separated from the image or any adjustment layer (You can see this on the Layers panel) And if I try to replicate the same steps on Affinity Photo the result is way different, you can see on 'P-AP1' that I did the same steps and the target color was not reached so I needed to increase the saturation up to 47%, and the result is still different from 'C' but closer to 'B'. I also subtract 'C' from 'B' and result was clear, there's a slight discrepancy on the color on a diagonal manner ('Subtract') that can be seen on 'C' specially on the top left circle. So I would like know what is HSV doing inside Affinity Designer ('C' & 'P-AD') and if 'C' can be fixed to match 'B' or 'P-AP2'. Or if it can be reverted from 'C' to 'A' and how. Images.zip