I have trouble differentiating close colours. If I had the option to change top layer traces to black and bottom layer traces to light blue and jumpers to red.
Or some other customisable colour scheme that would be friendly to partly colour-blind people. It would be of great help. Currently, the top layer copper is gold colour and bottom layer copper is orange colour. Since those two colours are close to each other, I am having trouble telling whether a trace is on the top layer or bottom layer.
I know that this was done so that the PCB looks realistic whilst designing, but an un-intended consequence of that is the colours are too close to each other.