@morre @ciupava @grischard @soporificoctopus I was wondering the same. I had a hard time finding a red outline in many of the pictures at all without zooming in. And I am only colourblind and not even a hard case in that.

So for that specific case maybe use a different colour for the outline? Although I am not sure how people with other types of colourblindness react to other colours.

And that still leaves the question what the plan is for people with other visual restrictions.