Would it be possible to have some sort of colourblind settings as the current colours depending on what type of colourblindness people have can be extremely difficult to work out what it actually is.
Looking at my planner I find it so hard to tell if I am tired or very fresh as the colours look almost identical to me. These days it makes no sense to not have colourblind options to change the way colours look and pretty much a standard. This does extend to the IQ apps as well as these suffer from similar issues when it comes to power zones and the colours used.