As a colorblind player, quest area indicators are impossible to see.

[Anubis_Nephthys]

They can't see it on the minimap.

That's literally the point being made here.

The OP can't see red.

They can't see the orange circled areas maked on the maps (mini or otherwise) and have been fudging it by hovering their cursor over the map to find the actual area. They can see the blue and green , so the request is to allow people modify colors for UI details.

Then marker is literally something that hangs at the edge of the minimap. He can see shapes...