I am colourblind. I have completely rejected academic manuscripts and proposals that use only red and green in graphs without shape or line width differences. If they are that incompetent about use of colour, they are not going to be better in other things.
@fesshole sounds illegal.
@Mellivora @fesshole if he gave that feedback with the rejections it could be in line with some accessibility regulations.
@[email protected] they're using their disability as an excuse to be a power tripping dickhead. I would've reported them and people like you making excuses for these sort of people are part of the problem. @fesshole
@Mellivora @fesshole All graphing software would have the lines distinguished by other things: dots and dashes, added squares or circles.
@negative12dollarbill that still doesn't excuse a dickhead using his disability as an excuse to be a powertripping asshat. Just rubs off as someone who is insufferable to work with. @fesshole

@Mellivora @negative12dollarbill @fesshole

About one man in twelve has some form of colourblindness:

https://www.colourblindawareness.org/colour-blindness/

If Fessor can't make sense of the graphs in the paper then a good many men (and a smaller number of women) will have the same problem. As long as Fessor explains the reason for rejecting the paper, I think it's valid.

About Colour Blindness - Colour Blind Awareness

Colour Blind Awareness

@CppGuy @Mellivora @negative12dollarbill @fesshole

The normal way for dealing with this level of error is to ask the author to fix it. That kind of feedback would be extremely valuable for people like early career researchers or people who have not been taught to consider accessibility.

I hope the OP does at least include this feedback in the rejection, but since its not usually considered a major fuckup, I fear this will get lost amoung whatever more serious error is given as a pretext. Indeed, if that error is not really a problem of would undermine the rest of the feedback.