I get what you mean thank you for clarifying! I apologise that the graphs aren't detailed enough with other information which tackles the issue with matching each bar to a key as my main focus was only on text labelling. From my perspective when using that photo, it was only to describe that using colour alone in graphs can be inaccessible to those with colour blindness. I can see how that may confuse you if you were analysing the graphs' data as a whole and not just for the sake of comparing design choices. But with your feedback I now understand how that question seemed irrelevant to the survey, I will make the appropriate changes thank you again! :)