One issue I’ve noticed while working with the iPad version is that it’s very easy to edit photos so they look good on the screen, but terrible when printed. I have traced this to the fact that I had the brightness too high. It would be useful to have Affinity Photo to adjust its behavior so that when the OS/printer color management software gamut maps you get the expected results. The BBC has done some research on this for videos. However, a quick fix would be to display a background that is similar to the surround light level specified in the current color standard being used. For video this is around 10% of peak white.